#book-recommendations
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I can say that I’ve learned most of the math I know from books, not classes. I’m not against classes at all, but it’s absolutely possible to self-study math
self studying fundamentals is dangerous
a good teacher is like having access to all the cheat codes
Yeah, but there’s a good chance that someone gets stuck with a bad teacher, which is much worse than self-study
if theyre doing uni, they cant avoid that
You can try the openstax precalculus and college algebra book from openstax if you actually want basics basics
any recommended book about logarithm from the basic to advanced?
Khan Academy really seems like a good alternative then
that has exercise and its example
There is also solutions in the back not only for even but odd
Can you guys recommend, any math topics which I should practice in free Time to get ahead.
What interests you?
Algebra 1, Geometry, Algebra 2, trig is for teenage learners.
College Algebra is those same topics for adult learners.
Axler has a College Algebra text.
Lang Basic Mathematics covers those + Pre-Calc
Professor Leonard and Brian McLogan for youtube. I don't know the exact spot but I believe they both cover roughly College Algebra through calculus
Trigonometry but it's too darn hard
Michael Corral
What's this bruda??
Looking at the table of contents, Lang's Basic Mathematics also covers pre-algebra.
Yes "those same topics for adult learners"
I would just go straight into Lang's Basic Mathematics and when the whole textbook is finished then start Calculus
If you feel after the textbook you're lacking in something, for example you feel weak in doing long division of large numbers, then find a youtube video on practice problems.
Yes they're essential for a reason.
@molten mason let's say if I read this pdf you provided me and practice some of the problems there, would I be able to do all "prove that" questions easily?
Just curious
There is none, it's just time.
You could theoretical buy 100 kindergarten workbooks and start from there, but if you already know the subject after the first workbook then it's best to move on.
A lot of advanced material uses early material, for example. You can practice single-digit addition many times. 1+1, 2+2 before moving on to double-digit addition, BUT, double digit addition uses single-digit addition, 31 + 42. Triple-digit addition uses both single-digit and double-digit addition and so forth.
Everyone on Earth has the issue of "I don't know what I don't know."
I recommend Basic Mathematics because it's concise and gets you through all of those topics. While using the book, I recommend youtube to help explain topics. You can just youtube "how to complete the square" and thousands of videos will pop up. When the book is finished you will now know what you know, and it'll be much easier to learn more about what you don't know. You no longer need 100 kindergarten workbooks. Maybe you need to review a section on khan academy, maybe you need to look at the trig link I just posted above, maybe you need to watch some more review sections on youtube about calculating volume of a sphere. Etc
For example, it introduces the main bulk of trig you'll need to know, but not all of trig. That trig link I posted is 180 pages of trig with more trig formulas and identitys would be a good thing to read after.
Those questions you should be able to do, but they're not designed to be "easily" IMO They're to make you think.
Your help's most appreciated.
Hello, I'm learning real analysis through the Abbott's Understanding Analysis. I find the book to be quite light proof-wise, although excellent as a first exposure to the topic. I'd like to follow up with The Big Book of Real Analysis by S. Johar as it seems quite exhaustive and rigorous, does anyone here have an opinion on it? Thanks!
Filling gaps will just take practice, with multiple varied problems designed in different ways, and no single textbook covers everything (mostly), I personally use multiple textbooks, there's nothing wrong with that. You can double check with that book or openstax or anything else just to compare notes.
You're always welcome to ask and wait but that book looks brand new, I don't know if anyone has used it.
At that level, all the books already mentioned by others above.
Nah
Anything you feel is lacking or needs more explanation you can supplement with YouTube
For example I think the binomial theorem is introduced in chapter 1 or 2, if that one doesn't make sense don't stress out too much, you can move on and then go back to it later.
There are the help channels 24/7 to ask specific questions. There's #prealg-and-algebra #geometry-and-trigonometry channels if you need a concept explained better.
The fundamentals come from books tbh
the books come from teachers
It’s nice to have good teachers, but we don’t have a society that incentivizes good teachers to teach
bold of you to assume everyone knows how to read those books
Oh, like i guess if the books start from the basics with good explanations then maybe
read a lot, there's no way around it really
Doing math is to suffer. To do it is to find joy in the suffering.
Don't just read it; fight it! Ask your own questions, look for your own examples, discover your own proofs. Is the hypothesis necessary? Is the converse true? What happens in the classical special case? What about the degenerate cases? Where does the proof use the hypothesis?
Paul Halmos
never heard of this book. it's pretty new, so i haven't seen any others write a review.
then one should read lecture notes first ig
I'm also a bit biased towards books, because why go to classes if there are so many amazing textbooks?
I mean, what could a lecturer do that a textbook can't?
As far as I know, in Slavic languages (like Polish, Latvian, Ukrainian and so on) the word they use is 'read' as in 'a professor is reading (not teaching) a course'
so why not to directly read it from the source 🤔
yes abbott is good as first exposure
then read Tao's Analysis I & II for more analysis (emphasis on second volume), then go to Folland's Real Analysis for graduate-level analysis
I should probably say it's just the way I personally like to do it.
And there are certainly lots of amazing lecturers who make the students fall in love with their subject and give lots of intuition
I mean, what could a lecturer do that a textbook can't?
Easy. Interactive class. Summarize. Ask questions to check understanding. Putting emphasis on something. Examples. Counterexamples.
and especially when you go higher into research phase, for a complicated topic, a lecturer can chart a path for you to learn so you can get to the frontier in a fraction of the time you take to read a whole book
all of that a good textbook does, except for possibly an interactive class
when you talk to advisors, it's like each week you get handed 6 books and 5 papers to study from
you aren't going to be able to read them all. Then the mentor becomes your guide in that wilderness
what to focus on, what to read
what could a lecturer do that a textbook can't?
the same thing what a pianist do that a music score can't.
In Hilbert by Constance Reed, he told the story of Hilbert when he was at Gottingen. His lectures were not always prepared, messy, and lots of times he would do math on the board without preparation. Klein's lectures were carefully prepared, almost like a play, where he would recite each and every word.
I don't need to say that students loved Hilbert's lectures way more.
It's not every day that you see how a great mathematician works
interactive is key. you want to save time.
lecturer can spot a problem and fix it in real time
hm, yeah, theoretically
a good reading course is where you spend 10 hours reading a book then 1 hour with the professor correcting you / lecturing you
for instance I have no clue about some stuff in stochastic PDE I would just ask my mentor whether X is true and I can take it as a blackbox for now
Not all lecturers suck
well, this is a completely different thing!
and this
I absolutely agree that you do need a mentor
but not a lecturer ☠️
(again, my personal preference. not trying to advocate for that)
to each their own, I still like having a lecturer, despite I hate class setting in general
I'm very much biased because I've been in math classes where students have been generally of high level (so no stupid questions) and the profs gloss over the proofs, leave details for us to fill in, and give a lot of intuition. I know not all profs are great.
the smaller the class, and the more advanced the material, the more effective the math classroom is
sometimes I think there's a reason why nobles in the past hired mathematicians as private tutors
beyond the economics of it, it's also the best way to teach and learn maths
if something is so simple you can just youtube it then there's no point in the class
this depend so much on a lecturer 😦
we have very strong undergrads, and some professors / lecturers do what you just said. but there are guys who mumble it for themselves and on the level they understand it. and there are guys who include so many unnecessary details, that I open a laptop and start studying another subject 💀
so it really depends on the person. even if we talk in terms of one particular institution
it's a very human industry
but there are guys who mumble it for themselves and on the level they understand it.
yes, that happens to cryptography class this semester in my case, the Wikipedia explains better than the prof. I dropped it, of course
Again, not all profs are great, but not all lecturers suck either
I guess I'm biased then because I have only seen one great lecturer in my life 🥹
but true
Good teachers are undervalued
My condolences. Great lecturers will really change your life.
tho as far as I know they are great researchers. like not only on the national level. they are just too bored to teach undergrad classes I guess
I wouldn’t know as much math as I do if it wasn’t for great teachers that helped inspire me.
But I also taught myself a lot because of systemic racism, classism, etc
look, they got PhD for their research, not their teaching. Most profs don't have training in giving lectures
yeah, exactly my point
they TA-ed, a lot, and gave seminars, a lot. But that's so little to teach effectively
I think academia could benefit from a philosophical overhaul
philosophical?
Mhm yah, like, rethink the way we educate people
Hahaha I have ideas
and also, it's painful to teach these things if you don't like it. I just gave a small lecture this morning on Riemann integration, and boy was I bored.
was about to have funny images of people reading philosophy books
Hahaha I have a funny meme in response to this that I can’t share
lol I could talk a lot about this topic
record the lectures, make the undergrads sit in front of their computers with headphones on, and let the profs do their research 😎😎
Hahaha i like that, not so bad.
Wanna hear mine?
for me at least the most fun part of teaching is asking students to solve / prove things and then seeing someone find the solution
with hints and corrections along the way
Abolish private schools.
Fund education through federal taxes instead of property taxes.
Allocate funding to metropolitan areas by citizen count.
Each metropolitan area uses the funds to build their own boarding schools, meant to cover ages 3-18.
Instead of tiny schools everywhere, make one central “mini university” per metro area.
Schools are managed locally, so no federal “curriculum”, although you do need to demonstrate proficiency in certain subjects to give out a high school degree.
Get rid of K-12 grades. Offer courses based on subject with prerequisites. Passing depends on a capstone class in each core subject, along with any majors you took.
Get rid of A-F grades while you’re at it. Classes can just be there as supplements, like live tutorials. Students show up if they need it.
These educational reforms, at a high level, will reduce the financial and time burden on raising a family.
Having kids isn’t the end of your life anymore, man or woman, rich or poor. You can still have a career and a life and like theoretically 10 kids if you wanted.
The new education structure promotes innovation and initiative, and prepares students for a successful college education.
In this paradigm, a high school education functionally replaces what we think of as a bachelor’s degree. You can use it to get most jobs by building your portfolio. Passing the fundamentals means you know calculus, philosophy, and civics. And your “specialty” is something you care about. This makes teaching fun for teachers too, only kids that want to learn it are there.
College / university is for researchers and advanced study.
PhDs are only given to people that discover something revolutionary, like what we think of as a Nobel prize. Masters degrees are what we think of as PhDs in most fields, you did the research work but didn’t find any breakthroughs. Those are your teachers mostly, phds focus on research.
Lol also, decentralize the peer review process.
phew!
Get rid of K-12 grades. Offer courses based on subject with prerequisites.
we already have electives and course choices for K-12
It's that time: people that don't teach give their opinion on how to restructure an entire nation's education system
Mhm yah kinda, but what happens if you’re really studious, aka you want to finish high school material by age 12.
How do you do that in our system?
ROFL!!!
yeah when I started teaching and before I started I had a bunch of ideas I wanted to try out as well
Hahaha i always wanted to be a teacher, I thought about these reforms with teachers in mind
everyone has to go through the education system so a lot of people have different ideas about how they could improve it
By all means become a teacher, you will quickly realize that you had no idea what it means to run a classroom
I’ve worked in classrooms before
I certainly didn't before I was thrown in a room full of 10 year olds
You were the teacher in charge of lesson planning & teaching?
I was responsible for some of that, it was an at risk population so kind of all hands on deck, no budget for textbooks, stuff like that
It sounds like you weren't the teacher in charge in the classroom, but someone that helped
Which is a valuable role and provides some insight
Yep that’s right
Hahaha if you’re curious about some of the minutia about my ideas relevant to teachers I could share, I’d be interested in your thoughts on them
Mhm okay, well if you’re interested in the discussion I’d be happy to have it, got nothing going on rn
Feel free to post in the math pedagogy channel
Why the hell would you want to "abolish" private schools
Let's bring this out of the book recommendation chat
#math-discussion could be a place to carry on this interesting conversation
Would “Basic Mathematics by Lang” and “College Algebra by Blitzer” cover enough of the trig needed to dive into calculus after ?
More than enough.
bet
In general I think people overthink what "book" to use rather than just trying to learn to solve the problems
Something that I'm guilty of myself
I just want to do calc physics already and started basic mathematics like 4 days ago and just want to rush through it already
If you've seen it before or you understand it, it's totally fine to rush though.
Physics and calc are both whole new worlds.
For example in calc there's a lot going on with trig that will be completely new but it all takes practice.
after abbott, feel free to look at carothers' Real Analysis, zorich's two volumes on real analysis, or even amann and escher's three volumes on real analysis, which treat real analysis from a very general point of view. you could also look at Metric Spaces by robert magnus or Metric Spaces by micheal o'searcoid. alternatively, you may dive right into measure theory with axler's Measure, Integration, and Real Analysis or schilling's Measures, Integrals, and Martingales.
Hello all, Im looking for a book that specializes in writing proofs. Id like to continue reading some books on real analysis, but Id like to be able to write coherent proofs before I begin
Which books are you using for real analy
Real Analysis by H.L Hoyden 4th Ed
did you mean royden?
that's a graduate reference on measure theory
you should already know some real analysis going into that book
unrelated book review
Yes Royden
Yes! Not sure why I read the R as an H
I knew it was a graduate level book going in, and its been a pretty slow read but Ive been learning a bit. I didn't know analysis wasn't the primary focus. Thank you for the heads up🙏🏻
Thank you, Ill take a look at these!
real analysis is the primary focus, just very sophisticated real analysis
thanks
I don’t want to go crazy I just want solid foundation to start doing calc physics
Alright cool. Thanks
this tbh
Looks like this Springer sale has started. I'm seeing the discounts on the online site. Very limited selection though.
i used coupons on the rest to bring it down to 150
Oh that's today
time to browse
what are you guys ordering from springer? axlers ladr and understanding analysis by abbot maybe on someones list?
So far nothing seems interesting. A lot of nonsense.
The three books I want aren't part of the sale either 
may I ask, what topic are you looking for?
foundational mathematics (including school "algebra" to calculus) to abstract and advanced algebra, (and what comes before studying such topics)
people like recommending here, basic mathematics by lang. maybe somone can recommend something better which emphazises more to your query.
I can't tell if you're trying to say you're looking for high school foundational math or foundations math
(their history has mentions of looking for "advanced algebra" but not homological or abstract, but it's not so clear as to what they mean by that)
@finite gale this def sounds like high school foundational math to me
they want abstract though
this sounds like another book list, in which case https://realnotcomplex.com
abstract, and by advanced I mean homological and topology
Schilling's Measures, Integrals & Martingales seems to fit my aims. I'll learn more about real analysis after it, out of curiosity. Thank you!
Often it is more instructive to know 'what can go wrong' and to understand 'why a result fails' than to plod through yet another piece of theory. In this text, the authors gather more than 300 counterexamples - some of them both surprising and amusing - showing the limitations, hidden traps and p...
here is a companion volume
Information and additional
material on the books by Rene Schilling
here is the book's website
there is a full solutions manual available for free here
I was eyeing Axler's book on measure theory, but the lack of solutions made me kind of afraid
Thanks for the links!
def gonna read their measure theory book
the same bogachev of 2-volume "measure theory", it appears
yeah
"moscow lectures" series, interesting, i didn't know springer had such a series
preview on amazon has a preface of several pages talking about the series
this book looks like a good supplement to a mathematical logic book
In a recent addition to the Springer series ‘Problem Books in Mathematics. Laszlo Csirmaz and Zalán Gyenis have put together a fairly challenging collection Mathematical Logic: Exercises and Solutions. From the Preface: Problems in this volume have been collected over more than 30 years of teaching undergraduate students Mathematical Logic at E...
@molten mason this book is on sale
@gray jungle newer bogachev in a much smaller package
I may be a bit ambitious, but would this be a good read after Abbott and Schilling ?
i'd recommend reading a book on metric spaces first or at the same time
Other than Schilling?
yes, i mentioned a couple earlier
Okay, thank you!
carothers is also mostly about metric spaces and function spaces.
3 days late but this guy is my prof rn and he’s great
very cool! i learned grad algebra from his advisor many moons ago, he was also great so i'm not surprised that shahriari is as well
ah wow
what kind of algebra
what's some good mathematical bedtime reading? stuff where I'm too spent from the day to actually read a textbook and do exercises but still wanna see some math and learn a thing or two that's not too involved
but still somehow interesting lol
What level?
i used art of problem solving to learn algebra 1 but im not sure itd be the best if you dont have pre-algebra down really well
Mmm unfortunately I dont have a book for that level
https://data.artofproblemsolving.com//products/diagnostics/intro-algebra-pretest.pdf they have this thing to test if youre ready for their introductory algebra book, so many try this and if you do well consider it
whats the best book or course or youtube playlist to starting analysis
i have the jay cummings book but its pretty confusing
i was looking at the bright side of math playlist aswell
just not really sure how should i learn it
this is perfect thanks
?
Hey, does someone know about CTPCM-Challenge and Thrill of Pre-College Mathematics, an Indian book used for Olympiad preparation.
also Hall and Knight, a algebra book??
Hello
Hi guys I'm new at maths, i want to learn more, can you recommend me some beginner books?
hey, can u tell which level u at??
Middle high school level😂😂😂
which grade??
I think like 8th/9th grade
Can someone tell me too
this is a detailed discussion on likes and dislikes, so can we talk in DM
sorry bro, not familiar with it
OHk 🥹
Try khan academy
Its not a book but it is quite decent
Ok, thanks but i prefer books👍😎
What about reading through whatever book your school provides?
I'm not studying now
Try mathematical circles, take your time with it. solve what you can
Idk but from the books' content maths for self study takes from arithmetic to calculus i believe it covers basics then further you can switch to other books. I am planning to start from this.
What do you mean with "mathematical circles?
Ok, thank you very much
Don't worry i will try to give the best of me
Do you have the pdf?
Are you beginner too?
You can send dm
No i would say but i have gaps in my knowledge
did u get it
and wbu?
In what context
did u get the pdf?
Yes
No
Hello, does anyone here know any books on combinatorics that are good for beginners?

enum by stanley and walk by bona
enumerative combinatorics and a walk through combinatorics ^
I'm trying to strengthen my foundation in foundational mathematics, but I'm scared that I'll miss something I really need or want to know, so I want to know as much as I can about a topic
I feel as though I really need that to progress.
Which is why I haven't yet approached calculus or anything further.
but I can never seem to figure out where to look for my aspired knowledge. essentially, I want my knowledge to be "perfectly" structured
@fleet isle pls
did u not get it yet?
No
wind back a bit — I asked about it recently and there were amazing recommendations given
starting from here #book-recommendations message
okoko
what are some good abstract algebra books that give a good exposition for galois theory that is necessary for algebraic number theory?
Have you already done abstract algebra or will this be your first time?
ive done group theory and have been introduced to fields and rings
in group theory we covered homomorphisms, isomorphisms, classification of finite abelian groups (but not finite simple groups), and quotient groups
Abstract Algebra: The Basic Graduate Year Chapter 6 covers Galois Theory, has solutions in the back. Go through Chapter 3 before you go through Chapter 6. Anything else you need to review would be in the other Chapters 1-5. To me it's a soft graduate book: It's written in a readable/conversational way but puts rigor in when needed. That would be a good book to get into Galois theory but have right next to you anything in abstract algebra you need to review.
If you're ready to dive into a graduate level Galois theory book, there's Galois Theory by Steven Weintraub
Weintraub = written perfect for algebraic number theory
Thank you so much, are there any pre-requisites? I’m not entirely familiar with linear algebra unfortunately
Also Chapter 7 of Abstract Algebra: The Basic Graduate Year is Algebraic Number Theory
I mean you technically you can look up LA stuff as you go along, but I feel like you should learn LA anyway no matter what, and sooner the better.
Linear Algebra by Friedberg, Insel, and Spence is a good option
like Weintraub required linear algebra
i know basic linear algebra but i haven’t taken a course in it :/ covered transformations duality inner products eigens vector spaces
can someone please respond
I feel like you shouldn't be too concerned about learning in exactly the "right" way. Just right enough. You're going to be constantly relearning foundational topics as you advance further and gain more tools and insights
I'm not that far along either but that's clear enough to me with the courses I'm taking
I have learned about continuity over the real line in my Real Analysis class, and as I understand it I will learn about how to recast the definition of continuity when I take Topology later. It's not necessarily better to learn the most general definition on your first exposure. Just pick some proof-based book on a subject that's reasonably at your level and you will likely be fine
You haven't approached Calculus yet, you said. Go pick up Spivak's Calculus if you want a proof-based approach to Calculus. Don't start with something like Rudin as your first exposure to Calculus
If you find that you're missing something later on, you'll be mathematically mature enough to fill in the gap.
what are your thoughts on using spivak to get deeper knowledge about calc after using a different book to get the basics down
My personal opinion: just go for a Real Analysis book
Spivak's Calculus was written for people learning the subject the first time
Like Tao?
itll be a while till i actually learn calc so i'll decide then i guess
thank you @slender cargo
Yeah like Tao
are there any PDFs you may recommend for fundamental topics?
You say you have not taken Calculus yet? Will you be taking it through a course eventually?
I'm self tutoring
Ah okay. Try Spivak's Calculus then
thank you
ill probably be using both AoPS's calc book and spivak to learn calc when i get there i think
If Spivak's Calculus becomes tough, I'd say look at a proof book also. I know there are some good free ones online, though I'm not sure what they are
@remote sparrow
Yeah, imo better to think about calculus when you actually take the course. Better to work on something like Number Theory in the meanwhile
does someone have any opinions on J Stewart for pre calculus?
thats actually exactly what im doing lol
reading AoPS's number theory book
Nice!
and im not actually gonna be taking any courses, im self taught lol
oh gotcha
as in, you will learn Calculus when you decide to?
i have a path im planning to learn the stuff leading up to calc in
I see
^ look at the above book also alongside Spivak's Calculus. Maybe go through the above book first
may you send a PDF of Michael Spivak's calculus please?
okay
nevermind
I've found one
anyone has a review for Essential Linear algebra with applications by andreescu
@maiden glen ^ there's a good list. People at universities usually go through an Introduction to Proofs course after going through a Calculus class (at a lower level than Spivak's Calculus)
Are there any good books that survey the developments and results in Hyperkähler Geometry from an Algebra Geometric perspective? There are several good articles online, but im looking for a more comprehensive reference
why do so many people like Fraleigh's algebra book?
when I tried it, it seemed too childish ig? like the examples were too elementary, the progress is incredibly slow and so on
and warning: I read only some chapters, since I used another textbook as my main
If you have anoher textbook it doesn't make sense to do Fraleigh. I look at it as good for a quick intro, to get one familiar with the terms and definitions. And then follow it up with a second course/book which goes deeper. I don't get how childish = slow progress? Yes it is basic (or childish if you prefer) compared to other books, but that is why it can be used as a quick intro with a better follow up.
tbh I don't remember what made me think it was slow to read — it was a long time ago
maybe just because it included too many unnecessary details
Imo, if you are doing a course, you should do it from a better book and Fraleigh/Gallian etc are not worthwhile (except maybe selectively as reference for easier explanation). If you are self-studying (where the main issue is burn-out or the book being too hard so you give up), it is decent and it should be done in 2-3 months max. With the understanding that you can skip some non-essential stuff and follow it up with a better book.
better book
like dummit? ☠️
Depends on the uni, course. etc. Standard alternatives are Artin/Herstein etc. if you are self-studying then it's different.
Obviously ymmv...
Some like Jacobson
3 months seems ridiculously fast to me 
Or I just have a skill issue 
Well I meant like if you are only self-studying one book xD. A standard undergrad course is 4 months. And, that's usually 4 courses. So, it's not unreasonable. 😛 And, you can skip some stuff, stop before Galois theory, etc. to make it like a one semester intro course.
That'll probably take me a year 
well, it's not a race so it doesn't matter. But my point is... if are going to spend one year on AA (which is perfectly standard with 2 courses on intro AA in some unis), then do it with a better book than Fraleigh.
Optionally, do Fraleigh 3 months and Artin 9 months or something like that 😛
Yeah its not like I can magically speed up, and since I have no particular time pressure, I don't usually stress myself over being slower.
Yeah I'll be using Jacobson when I get to learning algebra
which graph theory books are the most recommended ones, if possible with lots of problems?
Found a very nice book about Borel sets which I'm skimming. It's of the highest quality, it includes many exercises interpersed in the explanations. It can also serve as an introduction to set theory and topology (if you focus on metric spaces at least), it's pretty cool. Chapters 4 and 5 seem to be slightly more specialized tho. https://link.springer.com/book/10.1007/b98956
not for me I pressume
no, just sharing in case anyone is interested. I always wanted to learn about Borel sets, but never found a nice entry point
Go to Soberon's book chapter 4
You can also try this problem: There is an integer $n>1$. There are $n^2$ stations on a slope of a mountain, all at different altitudes. Each of two cable car companies, $A$ and $B$, operates $k$ cable cars; each cable car provides a transfer from one of the stations to a higher one (with no intermediate stops). The $k$ cable cars of $A$ have $k$ different starting points and $k$ different finishing points, and a cable car which starts higher also finishes higher. The same condition hold for $B$. We say that two stations are linked by a company if one can start from the lower station and reach the higher one by using one or more cars of that company (no other movemenets between stations are allowed). Determine the smallest positive integer $k$ for which one can guarantee that there are two stations that are linked by both companies.
croqueta3385
problem solving methods in combinatorics, soberon?
yes
Pranav Sriram's book also has a chapter on Graph theory
there's the GTM
I think it's useful to think about what affects speed of learning. For me, I've found it useful to:
- Sleep more
- Know where I'm going. That is, read ahead, skim first, figure out what these theorems are used for, what the general program is, before delving into the details.
- work at night, with no people around
sleep more + work at night = insomniac
i think you mean "nocturnal"
good catch on the linguistical mistake there, thank you
Yeah sleep is 💯 important. I like it. For 2, I use a bulldozer approach and I don't really skim, but maybe I should (I tend to avoid that to have more suprises). People isn't really a problem for me since I have no social life 
It's not about having a social life
I am including people you don't know and don't talk to.
I like my approach because it helps me know what's important, it helps me tackle things like important definitions and concepts before needing to use them heavily, it lets me learn the subject in parallel, it lets me decide what path to take first (like with differential geometry, where my path was "generalized stokes speed run any%")
So, if you think a certain section (for instance) is detractionary to your goals, you'd place less emphasis on it, I suppose?
what is the easiest book on discrete math with lots of problems for undergrad?
wouldn't it be easy if there were few problems
its probably not a good idea to use an easy book for it either
What about if you can't avoid people and nose most of the day?
My life would have to be very different for that to be the case
Yep!
Wouldn't say "detractionary", it's not like it's negative
Oh ok got it.
Actually I mean if you have single free room in house and your siblings listen songs there and make other noise etc.
really good noise suppression
Then try a building
headphones exist, go somewhere else
Building?
random remark: i've never wore headphones before
thats a massive L on your part then
a good pair should make your studying somewhat enjoyable
i am a bit of an audiophile
Libraries! Places in a college! Coffee Shops! The outdoors! The park! Etc!
i love headphones sm
That's the problem. I don't listen songs so don't use headphones. Also there is no other place near to where I can go like Library near to me. So only option remains is that room
I just use my earbuds
still recommend going out to study
there's nowhere near you that's good for studying? really?
idk i've functioned all my life without headphones/earbuds
I really like listening to white noise btw
you become hyperaware/productive in a library for some reason
it's been alright
I cant study without music personally
music used to be more helpful to mr
Unfortunately yes there is no such place. (Its kinda village type) my college and other libraries, coffee shops etc are in different cities away from me
i wish my campus had more "beautiful" spots that were productive
like had tables
etc
what is near you?
surely theres an open quiet space by you
even a hole is fine
big fan of math holes
headphones are a must. I live in nyc and even the libraries are too loud without headphones
dr.dre's headphones should be part of your standard issue survival kit
Houses and local shops.
But I think I can go to the roof of my house. Although I only can sit on stairs and can do math.
Not till late night because of lighting issue there
you can study home, or wherever you are without active noise cancellation headphones, white noise will isolate that with 5 dollars earphones, or the ones that come with your phone
brown noise is good too
what's your favorite sequence of homology groups to study in?
or ambient music
for some reason music stopped working for me
Sounds good. I shall try
you probably became numb to it
i don't think so?
you need to listen to more obscene stuff then
it doesn't put me in the focus state anymore
unzip that acronym please
i use earbuds i'm not subjecting others to my music like an asshole
nada
you're music too tho
I been roughly listening to the same songs for like 2 years which sucks
no, i'm discordant chaos
i guess having earbuds would let be listen to music while working, but i guess i got too used to working w/o it
Right, I meant detractionary as in sidetracking (not necessarily in a bad way, but perhaps just not what you need).
i am a sidetrack
i skip everywhere i go
a skip in your step?
what are good undergrad books with good and difficult problems, particularly on calculus, geometry and algebra?( I've passed jee for reference)

@lusty ermine easy https://www.amazon.com/Discrete-Mathematics-Computing-Peter-Grossman/dp/0230216110
new https://www.amazon.com/Discrete-Mathematics-Applications-Ali-Grami-ebook/dp/B09ZKXCZHL
free https://discretemath.org/
just found this too https://www.amazon.com/Discrete-Mathematics-Graph-Theory-Undergraduate/dp/3030611140
i literally don’t know how to respond because passing the jee doesn’t tell me anything about you or your goals
give em a book trio series
just check the pins
the nonexistent ones
thanks renji, 🐐
when you feel up to it check out art of computer programming too
yea
...?? what level
we talking Galois theory or we talking quadratic formula?
always defer to this book when we dont know
we talking lines and circles in R^2, or we talking lines and circles in a riemannian manifold?
we talking integration by parts or we talking PDE theory (aka integration by parts)
(@alpine bison)
There are 3 I recommend: 1. Graph Theory by Diestel 2. Graph Theory by Bondy and Murty, these two are the main ones I see referenced and used in courses. 3. Introduction to Graph Theory by Doug West this book is large but good and coherent.
im looking for a calculus textbook which starts by developing sequences fully before starting functions, since that's how we do it in my course
spivak, apostol, etc, dives straight into functions and continuity
my course when discussing uniform continuity mentioned that they preserve the convergence of sequences for example while most textbooks don't care about that
most textbooks do,
does anyone have good book recommendations for ODEs and PDEs
what are those
ordinary/partial differential equations
thanks Sour Drop will check them out
i don't know how good this book is but i saw it on the title list for the yellow sale
although traditionally a real analysis textbook structures itself similarly to a calculus textbook (doing a bit of material on sequences, then jumping into limits of functions and holding off on further discussion of sequences and series until after integration), some do offer flexibility. see schroeder as one example.
i believe cummings mentions this fact
basically I want to venture into more advanced mathematics but I know just integration by parts..
with algebraic geometry and multivariable calculus.. and develop more on it
galois theory
thanks
sorry for replying late, had an unexpected lecture
Apostol Calc I (or better Spivak if you want something in-between calc and analysis, or Abbott if you are done with calculus and want to start with analysis), Apostol Calc II for Linear Algebra and Multivariable Calculus.
If you are in engg (considering you said something about jee) then Kreyszig Advanced Engineering Maths.
thanks for the details
I'm gonna have to defer on geometry, no idea 😛
btw, you can also look at the math courses on the iit websites.. they usually list the books, etc they use.
hubbard and shifrin are good for multivariable calculus
okay
thankss
some algebra recommendations
you can also check pins for other real analysis, linear algebra, and abstract algebra recommendations
lol I do relate, even as a beginner calc looks like something u can't get out of
thanks again @remote sparrow :))

excited to dig deeper and solve complex probs in maths :))
it's always like that. Ppl would say "geometry", "algebra", "arithemtics", or "calculus" and then expect us to know what they mean.
i did mention above jee level
Jee indian exam?
yeah
Yo anyone got any book recommendations, gonna start bs first year in maths
Jk
Spivak or Apostol, but if its your first year. Take it easy before grab a book. Maybe one of your teachers explain pretty well the subject
Some book, lecture notes or something to study an practice about planes and hyperplanes?
The metric spaces book I just finished recommends both Rudin texts, then goes on to mention another text that he notes people find difficult and dry
The fact that there’s a harder, less interesting analysis book out there, than Rudin, terrifies me
dieudonne lol
Ayoooo. Do you guys have book suggestions for abstract/ modern algebra? Those that are legally free to access online coz yo hooman right here is broke
I think you can get a pdf of most of the famous books.
Lang
some like Dummit and Foote
Dummit and Foote and Artin are both easily available. I quite like Artin, D&F isn’t bad but it’s extremely dry. It’s good for a reference or for problems, because it’s got loads of problems, but it’s far from an interesting book to read
I’ve never personally used lang, I know some like it but I’ve also seen it referred to as,
what book did this cover originally come from? Grillet?
Afaik it was a random meme, there’s loads of different ones, there’s a watermark at the bottom of the website that posted loads of them
Oh you mean the actual image on the cover? From a quick google yeah it is, I’ve never heard of that book before though
Hi guys does anyone have books / pdfs recommendations for learning about connections on principal bundles?
Doesn’t have to be super deep I just want to know the basics like connection and the associated 1-forms, paralllel transport and curvature
I cry laughing every time I see this image. It will never not be funny.
Also I'm personally going through Lang rn
If you're a university student, Springer textbooks are free via PDF.
If you're not I'm sure there's other ways, I get all my PDFs legally.
lmao. so what was it?
How’s that going?
Lmao, what chapter are you on?
LMAO
You can go to springerlink and log in via institution
Chapter 2 
It's not my main priority so I'm going through it slow amyway, but everytime I go into it I immediately need to load up a second window like wikipedia or something lmao
Somewhere on the website, maybe desktop view, when you look at a book near the PDF it should say via institution.s
It'll then ask you your school and have you login.
I read the part on groups, the too small part on rings, half of the part on polynomials, skipped modules, then the Galois theory part up to Abel Ruffini
Yeah I've popped into galois theory and the linear algebra section a couple times
Even with everything said I'm liking it a lot
whats a good book for self studying complex analysis?
TY
Lol my book reviews are my best contribution to the server
If you're still looking for a book like this then check out Surreal Numbers by Donald Knuth. I haven't read it myself, but it's the closest I can think of to what you asked for.
Is there any representation theory book that actually motivates the subject?
oh, wow. thank you! I will definetly check it out!
Have you looked at Etingof's book?
It's called Introduction to Representation Theory
no but i like that it talks about quivers and abelian categories
Complex Made Simple is a really good book, there are good reviews of the book if you search for it's name. For my own thoughts, check this #book-recommendations message
if you don't have any specific preferences, here's my list of books and lecture notes (I will have complex analysis course this semester) not in any particular order
I definitely don't intend to read all of them tho 🙂 Real analysis course showed that it's critical to have lots of resources. So ig I will eventually find one-two books that I like the most (n' which coincide with my uni's syllabus) and choose them to be my main ones. And the other ones will be just for occasional reading, in case one particular book didn't explain concept well enough or whatever
When does semester start for you? I've heard not so good things about Conway. I'm probably going to go through Lang and Freitag 
it kind of started already, but the lecturer basically goes over elementary stuff for now, like proving BW for complexes etc. So I just allocate my time for other subjects for now
they said it's because in the previous year the pace was too high for a reasonable amount of people to catch up
I heard conway was like dummit but for complexes — incredibly boring but awesome as a reference
Yeah I guess that tracks similar to what I've heard.
Sweet
let us know your own reviews and how your class goes and what your recommendations end up being.
nah it’s your jokes
That too tru
I'm using Conway for Complex Analysis right now, and its approach has merit. The problems are standard, yet the material is dry
He has a neat proof of the Cauchy integral formula, and his formulation of the Riemann Mapping theorem is exceptionally clear
If you can make her giggle, you can make her... nvm
Is that as a first course or a second course though?
It's a standard first year graduate sequence
It's my third or fourth? time taking complex
Goals 
What books have you used for them all?
No, it's a waste of time to take it this many times. The first time I didn't understand anything. The second time it was the grad sequence and I felt like I learned a lot
I did complex-adjacent things during my MS program
And now I'm in my phd and have to take it again
Back to the books: stein and shakarchi complex, ahlfors, rudin real & complex analysis, marshall complex analysis, and Terry Tao's lecture notes for 246C in spring 2018
Now we're using Conway's Complex Analysis
When I did analytic NT we used Stein and Shakarchi Fourier & Complex. Fourier part for Dirichlet's Theorem on Arithmetic Progression, Complex Analysis for Proof of the Prime Number Theorem
Did you do masters and PhD at different schools, is that why?
Yes
My school uses Ahlfors I believe. I keep going back and forth on various volumes of S&S for the fourier analysis mixed in, but I was thinking of going through Freitag and then picking a specific book on fourier analysis later.
Yeah, Ahlfors is a great book, but I think it's a little dated
I'm partial to Marshall's text, but I'm becoming a fan of Conway even though it is very dry
Thanks!
I like Conway!
excuse you
I've read the first half.
I didn't find it dry at all.
The approach to integration was neat and easy if you have mathematical maturity and understand Riemann integration, I found the proof of the Cauchy integral theorem easy, I liked the handling throughout the rest of the first half
I remember really liking one specific problem
It's also been a while
that was back when I was writing on the windows of my highschool
This is why I like asking multiple opinions 
He heard it from me lmfao
to be fair, I haven't looked at any other canal book
can anyone recommend some good books/pdf/online resources on bernstein polynomials?
Conway often gets bogged down in technical details, the font sucks, and is overly pedantic on many definitions or points
The font?
I rarely feel that I'm challenged or gain greater insight from the book
tbf I read it when I was a bit less mathematically mature
so the technical details and pedantry were helpful to me
It's a good book for a lot of reasons, especially if you're reading on your own
I just think that the others convey the spirit of complex analysis a bit better
Especially Stein & Shakarchi
thoughts on Analysis On Manifolds by Munrkes?
Any good Precalc books anyone recommends?
Aops precalc is good, so is axler's "precalculus a prelude to calculus"
but "precalculus" is not broadly standard, so if u wanna prep for precalc the class, use whateber textbook is standard in your state, for example Texas and TEKS Precalculus.
Which linear algebra book has hard non-proof problems? For undergrad.
my local community college uses
"Elementary Linear Algebra Applications Version, Anton, Rorres, 2010, Wiley, Inc., Tenth Edition. "
There is some book on functional analysis by some authors from epfl. I am not able to recall it right now. Can someone tell what is the name of the book or authors?
you might like one of these #book-recommendations message
Any book rec for algebra 1 and 2 with trig?
The term "mathematical maturity" is kinda confusing. Specially when the author says the only prerequisites is mathematical maturity.
Yes to stewart calc if its your first introduction to calculus.
Idk about Schaums outline
I've been wanting to start Linear Algebra and I would want to ask if Schaum's is a good book to start with
I can’t speak about this one, but I learned LinAlg from Johnston’s two books and they are amazing. I can only recommend them if you’re a self-learner.
I recently learned there is a definition https://en.m.wikipedia.org/wiki/Mathematical_maturity
In mathematics, mathematical maturity is an informal term often used to refer to the quality of having a general understanding and mastery of the way mathematicians operate and communicate. It pertains to a mixture of mathematical experience and insight that cannot be directly taught. Instead, it comes from repeated exposure to mathematical conc...
Wow. This is amazing.
The way of defining mathematical maturity as ability to "Fill in missing details" seems me more reasonable than others.
well, I think all the other parts of the definition are as important
This seems to me somehow better. But yes, no doubt all other parts are important. All looks reasonable.
well, for example, logically speaking one needs only basic set theory and the definition of ℤ and arithmetic on ℤ to read Lang's Algebra
ah, okay, sorry, i had assumed you had gotten the wiki page
Do you mean Lang's Algebra?
omg, is that how he writes his books? 🙈
I have only read some of his undergrad textbooks and they seemed very readable
Why shouldn't that be true?
Wouldn't that be true of most abstract algebra books?
Yes. I have got some ideas about mathematical maturity
For real?
Ig you are reading "function of several variables book" of lang right
Yeah, some chapters of it
what is so unreasonable about an abstract algebra book not logically needing much prerequisite
Is the author Nathaniel Johnston?
Yes
His books are very good at both presenting the concepts in an articulate way and developing the mathematical intuition of the reader
In both volumes, there are plenty of computational as well as proof-writing exercices, and answers to a lot of them
they have videos on youtube as well
Can you guys recommend me any math basic logarithm books?
Oh. Wow.
Logarithm is just a topic in basic maths. However you will find it in the beginners Calculus book.
Oh. I am excited to see this when I will start abstract algebra
@gray gazelle A topology book is also like this, see Munkres who doesn't even assume basic set theory
sorry for not replying: I was in a hurry. Well, it's perfectly reasonable. It's just the way you said it I thought he had his book written in "ZFC" style \
like, instead of saying: for any group, there's exactly 1 neutral element he'd write
$$
\forall G , \forall e_1, e_2 \in G [\forall x \in G ,, e_1 + x = e_2 + x = x] \implies e_1=e_2
$$
Sweet Tea 🧋
no
Oh yes exactly.
But he assumes mathematical maturity right.
I almost have heard that before taking munkers topology you should be familiar with first course in real analysis
want some recommendation for number theory book that will cover from basic to advance topics + another book only for problem solving in number theory
Hi.. Am new here
Can anyone suggest me some tough maths books as am in high school and wish to prepare for math olympiad
Some really tough books for high school
toughness is not the criteria to optimize for
singular criterion
True but I like that
my point is that if you just wanted something hard, you could try, say, that book published that explains the proof of the Poincaré conjecture
but, if you actually wanted to learn, it makes sense to start at a different place
Ofc what I mean is,
A book that clears the concepts and has good set of problems
anybody got a book that will help me understand calculus in its whole and its easy to comprehend? like easy enough for a dummy like me to understand...
Discrete mathematics book for learning combinatorics and graph theory, with lots of exercises?
thanks drop !
Hello folks,
I am a computer engineering student in his second year, and I didn't really work really hard in high school. Now I am suffering the consequences and maths related things are making me struggle in university. I kinda like maths to be honest, but I really never strove to understand them.
**I'm looking for books that teach from a beginner level to a university one of Calculus, Discrete Mathematics and Algebra. **
If someone has some good recommendations it would be greatly appreciated.
What would you all consider the most rigorous yet still theory/practice complete book on high school mathematics (by practice I mean it has a problem set that is difficult to solve and varies, rather than being easy and repetitive)?
Depends on how beginner friendly you want the book, but if ur really starting from ground level "Everything you need to ace math in a one big fat book" is good
I'm a big fan of Papula but I don't think that exists in English, unfortunately
Annoying question but would you guys recommend Halliday and Resnik or Young for Introductory Physics ? I really want to just jump into Taylor and Landau while learning calc but from what I heard it’s not ideal without a strong hold on it.
it doesn't matter whether you pick halliday/resnick or young/freedman
personally i enjoy the informal tone of young/freedman a bit more but content-wise they're basically identical
alright cool
Serge lang Basic maths and stewart's precalculus and calculus. Is it all thats needed for self learning math and computer science. Or is there a better alternative for self learning
well those are math, they aren't CS
What I meant is if thats all needed for that field
Apologies for the misunderstanding
How theory complete would you consider this book? and are there any pre requisites or books you would recommend i read before/along with this?
https://artofproblemsolving.com/wiki/index.php/Math_books
wow guys look at this
AoPS books are the best
😍
more theory than most
there are no hard prerequisites besides a familiarity with numbers. however, the book was intended as a remedial course in algebra and analytic geometry, so modest familiarity with the basics of algebra and geometry would be helpful.
How good are Barron's books for self teaching?
Has anyone read Sharpe's Differential Geometry? Would you recommend it as a first introduction to manifolds and related topics?
I would recommend Lee or Tu
What books do would you recommend for a beginning proof-based linear algebra book, presented in an intuitive manner?
Is Jech's Third Millennium big Jech?
yes
I'm doing some work on homotopy type theory next year, but I haven't worked much on type theory before -- only structural set theory at most -- and my supervisor has recommended that I read up on some martin lof type theory beforehand
does anyone have any gentle introductions to that?
When did Sharp switch from foundations to DG?
also check pins
there is a logic reading list
tyty
i would say Lectures on the Curry-Howard Isomorphism by sorenson and urzyczyn seems good
Samuel Mimram's website
@covert bane ctrl + f "PROGRAM = PROOF"
Proofs and Types by girard should give a broad overview of proof theory and type theory and their connection to each other
almost no exercises though
i need book recs for number theory that will cover from basic to advance topics. also a book with bunch of problems from where i can solve after learning after learning one concept
ty
1980s
any book that has solved problems for cramers rule? undergrad.
Any book with an ultra-shit ton of linear algebra exercises (difficult ones too)?
Should be in #discussion but ok
Personally, I take handwritten notes as I read about a subject, then type them, and go back to them whenever I work on something related to it
Also try to create an explanation that you would give to to someone that has a knowledge of math just below yours
Or even a complete neophyte, although this clearly cannot be done with advanced subjects
it's always like that. If you ask nicely, ppl will respond.
Tbh we are all bored and procrastinating on doing math so we will respond to anything
https://www.amazon.com/Linear-Algebra-Challenging-Problems-Mathematical-dp-0801891264/dp/0801891264/
Thanks thats what I needed
I'll answer you in #discussion
#discussion is for everything that's not homework help. If it's too busy and off-topic then #serious-discussion is slower and more serious.
What is your math background? For a really intro book you should look at Curves and Singularities by Bruce and Giblin
But the book you are looking at is great too
Sup guys! Book Recommendations about diff equations and applications
how do I get introduced to Number Theory? if possible with multiple hard exercises (proofs)
undergraduate level.
If applications appeal to you you’d probably like Boyce DiPrima and Meade
thank you sir.
Do you guys have any books that teach complex numbers but more rigorously?
Like from a more abstract algebra standpoint
Maybe an algebra or analysis book with a more in depth section about them
Thanks in advance
im searching for textbooks that teach math differently from other textbooks about the same subject yk??
famous examples would be LADR (which to an extent eschews determinants) and aluffi (which involves some category theory). i would like more books in this vein, that either teach differently than other books written on the same subject, or books that present proofs, theorems, and methods which are also not commonly taught in other textbooks. tyyy!
Anyone got any recommendations for books presenting more research-related problems and topics or modern developments in regards to algebraic topology and or 3-manifold theory?
Is there a book on fourier transform that defines the fourier transform on a measure?
are you interested in the construction of the complex numbers or something?
Same here.
what does studying complex numbers from a "more abstract algebra standpoint" mean to you exactly
are you interested in its properties as a field?
Grafakos Classical Fourier analysis
in which book can I find lots of exercises for matrix transpose, and linear transformations
if possible with proofing
or whichever is useful actually. please let me know.
(this isn't for the sake of getting a book recommendation – I just dk where else to ask)
Does anyone know of any good alternative to Apple Books? The main things I'm looking for
• Good support for both mac and ios
• And by «support» I mean at least the following:
• Being able to either add bookmarks (especially on ios) or the feature of remembering where you stopped last time
• Decent pdf viewer (especially on ios, since on mac the built-in Preview app is more than enough – it supports both bookmarks and remembers where you stopped)
I mean, it may not necesserily be some kind of 'book app'. Maybe just a cloud service provider (my icloud is almost full xd)
The reason why google drive and for example Mega don't work is that they don't remember where you stopped :((
Kindle
hot take: imslp ios app
root your apple or find a better web app use linux lol
:))
I used to be a linux user for many years. Like arch, gentoo and whatever. But when you get a mac you don't typically try to make your life harder [by installing something other than macos] xD
And also, web apps don't work with ios well unfortunately
thank you both @gray gazelle and @manic cairn – I will check those out 
Arch Linux is truly based 🗿
i use arch linux, but my biggest problem with it is the linking of haskell packages, which is pretty bad
the haskell toolchain on arch is harder than it needs to be
nope. on retina display [very high res] it's very hard to run a vm
yea its really lightweight
this is becoming off-topic, but I wouldn't argue macos is a bad os
like it's unix-like and parts of it I think are borrowed from bsd(?)
i was going to give a tty workaround, but then i realized that would totally constitute "very hard to run a vm"
MacOS is best for beginners
And those who wanna learn programming
Should shift to Linux later
i have Pindows 11
it is developed by a Chinese company
and also for ppl who just want it to work and don't want to spend a good portion of their time doing sys admin stuff when you could have spend it on something else (I'm one of those)
Hey, I’m doing IB and my extended essay is about tessellation and cryptography systems, do any one of you have a good book that covers extensively the topic of tessellations and patterns?
Why not use Manjaro or something similar which is built on top of Arch
not sure of exactly how cryptographic it is but conway has a book on symmetries and tessellations called "the symmetries of things"
Hey, thanks a lot! I was just looking for something to get deeper into tessellation, I will take care of the other part later
So that books fits perfectly
yes, that
Any more books on tessellation and patterns? I’m trying to get as much information as possible as this is a mostly new field for me, also, it’s really interesting so I’m open to reading lots of books about it
Hi,
i am planning on participating in maths olympiad, can anyone suggest some really "tough" books for preps...?
thanks in adv.
AoPS volume 1 and 2?
also, I just found (actually I had the pdf for a very long time — just was not bored enough to give it a try) the princeton companion to mathematics
I only read one article in it but it was just amazing
And I thought it was in wiki-style, but hell no!
I won't probably read all the articles — just the ones I'm interested it, but imo it's a great bedtime read for anyone else interested
by richard rusezyk?
yeah ive heard theyre good for competition prep
im going through their main cirriculum and its good
Aops books mostly cover more computational contests like AMC and AIME
olympiads?
Check out Euclidean geometry in mathematical olympiads for geo and Modern Olympiad number theory for NT
Afaik there aren't any combinatorics or algebra books in the same style as those
But you should be fine with just online handouts and maybe one of titu andreescu's books
This study of basic number systems explores natural numbers, integers, rational numbers, real numbers, and complex numbers. Written by a noted expert on logic and set theory, it assumes no background in abstract mathematical thought. Undergraduates and beginning graduate students will find this t...
perfect description i think
Thanks
Books I got were gelfand algebra and trigonometry, stewart precalculus and calculus, serge lang basic math, number theory by andrews, graph theory by trudeau, rosen discrete math and code by charles pretzoid. Hope thats all I need for self learning and rebuilding a foundation for coding and computer science.
Or am I missing something else?
OTIS-Excerpts is extremely tough but very good
Also, specifically for number theory there is MONT and for geometry there is EGMO
You should find the pdf online for free
Could someone recommend a decent book on inequalities for Math Olympiads covering the standard ineqalities like AM-GM-HM, Cauchy-Schwarz, Muirhead, Jensen, Weighted Power mean, Holder, Karamata etc. ? I tried reading Cauchy-Schwarz MasterClass but it was a bit too hard
Do you guys know any good books about functions?
where can i find a good book on combinatorics
look under algebra theres a section for inequalities
i thought cauchy-shwarz masterclass was good ngl
where can you find a good book on combinatorics? this channel
what is a good book on combinatorics? A Walk Through Combinatorics by miklos bona
or enumerative combinatorics by stanley
Introduction to math olympiad reading please
got "algebra" by Serge Lang for really cheap can anyone share any insight into that specific book?
It's something.
I find he doesn't do a good job at actually explaining things at a broader level.
It works for me, despite that.
so like, i might need to withdraw from calc, bc it aint going so well for me. Its a combo of minimal time, teaching style, and the fact i havent taken math in so long so ive forgotten a lot of trig; but ive decided if i have to take it again in the fall i am going to prepare this summer so its a breeze in the fall. does anyone have any recommendations for calc prep; whether it be a physical tutoring institution or one online. I am aware of khan academy, but i would like other suggestions as well.
try a book that has many exercises in it with not many artifacts from publishers
Maybe Leithold TC7
The Math Sorcerer does a decent job with his udemy courses if you want a similar style to khan academy just a bit more polished. I enjoy his video format a lot and they are very cheap courses. For calc I also enjoyed the book "Calculus Made Easy" by Silvanus P. Thompson and Martin Gardner on top of those courses
joel been typing for a min
Thanks! I don't need help with the subject necessarily I just enjoy reading many books on the subjects I enjoy and was hoping it was a good read since I've heard a few good things about it here and there 😁
sorry I didn't finish my sentence for a minute haha
had me waiting lmao
my bad 🫡
but anyways there are also some "assignments" that come along with those udemy courses which I enjoy so it feels more like a class (even though some people may dislike that)
im fine with thaT
they are optional of course but worth going through if you need the extra polishing
make sure you know a little abstract algebra beforehand, and do the problems in the given chapter as soon as you can
but that's kind of a given
whenever a sentence is said, justify it yourself and see if it makes sense.
or rather, make sure that it does
i like lang because he is concise and not talky, and much of the technique comes from studying the examples and the proofs of the given theorems.
nice that's the type of book I was looking for so hopefully it meets expectations but if not im not too worried since I got it for about $10 haha 😁
yeah third edition
i first used it with this: https://math.berkeley.edu/~gbergman/.C.to.L/
i have nostalgic memories of the mental hospital printing out companion to lang's algebra in high school
does anyone know a good book where I can self study calculus? I know the basics, approx calc 1. I know about derivatives, some basic integrals, IBP, u substitution. I haven't learned implicit differentiation/trig sub/practice many integrals. I'd like a book that can explain all the way from calculus 1, up to multivariable calculus, or maybe a bit further. The more rigorous the proofs are, the better. I'm aware a lot of calculus concepts can't be rigorously proved untill real analysis, but I'd still like to learn the formal proofs of as many concepts as possible. Thanks!
Stewart could work for that, it covers an insane amount of stuff with loads of exercises. Afaik the proofs are decent too
what's the full name?
James Stewart - Calculus, Early Transandentals, I believe
can you recommend any number theory books? its quite hard for me to find this kind of book
Rosen has 2 books, it’s the one he authored himself you want not Ireland & Rosen, that’s a bit more advanced
Apostol or Spivak.
For single variable Spivak is better than Apostol but problems are hard. For multivariable, Apostol Calc II is good for an intro. If you wanna do differential forms and get into multivariable a bit more than Apostol's intro then do Shifrin or Hubbard instead.
Some calculus books:
Mainstream texts
Calculus or Calculus: Early Transcendentals Stewart, Clegg, and Watson (formerly only Stewart)
Calculus or Calculus: Early Transcendental Functions by Larson and Edwards
Thomas' Calculus or Thomas' Calculus: Early Transcendentals (formerly known as Calculus and Analytic Geometry until the 10th edition onwards, when it was renamed to Thomas' Calculus) by Hass, Heil, and Weir
Most other calculus books are similar to these market leaders. Old editions are often available at much lower prices than the newest edition. Stewart does have rigorous proofs of some results, though not always the most general case (which is not intended as a criticism of the book). I think newer editions of Larson have relegated some proofs to the book's website.
Rigorous calculus textbooks
Calculus (Two-volume set) by Apostol
Vector Calculus, Linear Algebra, and Differential Forms: A Unified Approach by Hubbard and Hubbard (if you wish to buy their book, buy from their website as it is cheaper)
Calculus of One Variable by Kitchen
Multivariable Mathematics by Shifrin
Calculus by Spivak
Apostol covers single-variable calculus and linear algebra in the first volume. In the second volume, he covers linear algebra and multivariable calculus. Spivak and Kitchen only cover single-variable calculus. Hubbard and Shifrin cover linear algebra and multivariable calculus.
"Half" rigorous calculus textbooks
The following books can be described as an interpolation of mainstream texts and rigorous calculus texts (which are pretty much analysis-lite sans topology). They omit proofs and concepts that the authors feel more properly belong to a real analysis course but give definitions and proofs of the essential ideas.
Calculus with Applications by Lax and Terrell
Multivariable Calculus with Applications by Lax and Terrell
Calculus: A Rigorous First Course by Velleman
the early transcendentals label just means the transcendental functions are used freely before we have the tools to properly define them (not a criticism, and possibly even a benefit as you probably want students to get lots of practice with these functions)
if mods may indulge me, can this get pinned
pins dont exist you know this already
are there any books on axiomatic definitions and how naturals/integers/rationals/reals were constructed
as for reals open (almost) any analysis textbook
and for nat, int, rat any zfc textbook will do
but especially tao is notable for that
Tao spends the first 5 chapters on that 
abbott also has an appendix constructing r from q
'jech intro to set theory' is a good one
Number Systems and the Foundations of Analysis by Mendelson
Number Systems: A Path into Rigorous Mathematics by Kay
Number Systems: An Introduction to Algebra and Analysis by Ovchinnikov
This material is also discussed in Elements of Set Theory by Enderton and Classic Set Theory by Goldrei
Tao ?
really?
damn , which one is good ?
mendelson is the most detailed
have u read that?
good is up to you
bits and parts of it
i have a copy at home
mendelson is by far the cheapest choice if you want a hard copy btw
lol i thought it was wrong URL
not really looking for a cheap rather quality book
dover books are good in general
high quality books for bargain prices
dover is the company's name ?
the publishing company yeah
really focuses on set theory first
no
damn i can't send image
the first chapter is basic facts and set theory ?
yeah but it's the simple naive way that you learn in most math books
it's not really a thorough introduction to axiomatic set theory
oh really
is there any good book or a website where i can practice questions of nearly every topic out there?
How does OpenStax compare to paid textbooks? Mostly interested in Algebra + Trig right now, and might not mind spending some money to help learning
theyre ok for a free resource, theres a lot better out there that are paid though imo
Terrance Tao's Analysis I
I'm stealing this gif 
What about barrons books?
There were a few math sorcerer recommended but heard a lot of mixed reviews
@daring lake thoughts on david cox's Galois Theory?
hi, can i have some topology intro book recommendations that are good for someone whos bad at math
I started reading intro to topological manifolds from John M. Lee.
Imo the exposition is nice and not too dense.
I picked the book because it has been referenced as a good recommendation on this server a couple of times.
Ronald Brown, Topology and Groupoids
cleanest intro anywhere tbh
Have you studied real analysis?
give https://www.topologywithouttears.net/ a try
anyone got a solid introduction to topology. So rigorous would be nice yes however idk what rigor means in topology.
I am familiar with fourier analysis and abstract linear algebra.
I think Leinster’s notes are great, they present the material very clearly
But it doesn’t do the weird point set stuff, it’s just the different topologies + compactness + connectedness
can you guys suggest a gentle introduction to number theory?
Burton, Silverman and Rosen are good one's to start with. NZM is the "best" but a bit harder.
silverman looks good
need a good resource for fractional calculus
would strongly prefer something physics agnostic
Best entry-level book for linear algebra?
https://discordapp.com/channels/268882317391429632/716264872018706443/959370522938974228 if you're looking for lots of computation, idk, try searching through this channel
Thanks
gamelin/greene, munkres, and willard are good
which books has complicated exercises con lagrange multipliers and optimization topics, if possible calc 3 undergrad with lots of exercises
?
frfr check out brown u will love it
Okay so I am solving Spivak's Calculus on Manifolds and the book doesn't contain anything on Taylor's polynomial, any suggestions on where to read about it from? Any expository articles or books as recs?
apostol
there is also ahlfors complex analysis which spends a little while talking about one-variable taylor series expansions
Oh nice
I'll check that out
any1 around here owns a new edition of spivak differential geometry book 1?
Mfw “yeah dawg just have f^n(x) be o(1/n)” mfw wrong channel open
rudin
any calculus book, but if you want the most general treatment, you can checkout henri cartan "Differential calculus"
also hubbard
Do you mean this one? https://maa.org/press/maa-reviews/differential-forms
https://www.amazon.com/Differential-Calculus-Normed-Spaces-Analysis/dp/154874932X
(i mean most general minus jets ofcourse )
This classic and long out of print text by the famous French mathematician Henri Cartan, has finally been retitled and reissued as an unabridged reprint of the Kershaw Publishing Company 1971 edition at remarkably low price for a new generation of university students and teachers. It provides a c...
in the setting of a banach space with frechet derivative
is this 100 page book even good for an undergrad?
Google didn't show me this when I googled idk why
What are some good books for self studying set theory, logic, and proofs? I have my eye on “Set Theory and Logic” by Robert R. Stoll and “Journey into Mathematics: an Introduction to Proofs” by Joseph J. Rotman
enderton elements of set theory
i like halmos a lot more for the record
but most people would recommend enderton
“Naive Set Theory” Halmos?
yep
Got it, I’ll get that one then, as “Elements of Set Theory” is a bit expensive
Books that can give me enough of a background to look into number theory and abstract algebra without too much difficulty
they mentioned they were looking into an intro to proofs book so naive set theory is def good enough
Enderton is a good intro to axiomatic set theory for people with little to no mathematical maturity, like I was.
Halmos is for naive set theory
I don’t?
there are self contained nt and abstract algebra books
Why did you rec enderton then
Do I not need set theory, logic, and proofs to learn those two though?
enderton is fine too for "self studying set theory"
you can pick that up as you go tbh
but if you want to learn ahead of time then
book of proof by hammack
it's free and legal online
If you have some basic naive understanding about logic you're fine
probably the best proof introduction book out there
E.g. universal and existential quantifiers
I’ve looked into it, but I don’t like the way he teaches about proofs, just not my style
“There exists” and “for all”?
you'll probably be fine jumping in to something like artin
are you okay with calc?
Haven’t taken it yet but I do know how to calculate basic limits, derivatives, and integrals. I plan to either take Analytic Geometry & Calc 1 and 2 or AP Calculus AB next year
not sure what analytic geometry is so it's probably skippable
you'll want artin's algebra imo
take calc ab
it's not bad
Geometry on the Cartesian Plane, to my knowledge
mm it could be okay to build intuition for later
but if you learn calc the right way you'll be building up plenty of geometric intuition
but yeah this
it also treats linalg iirc
Found one for $19 by Pearson on Amazon, thank you
yeah ofc good luck man you got this
Thank you, I’m trying. Picked up Hardy’s book “A Course of Pure Mathematics”, but was lost around page 10
a used copy of Classic Set Theory by goldrei in good condition is going for $27.30 with a $3.99 shipping fee on amazon. a used copy of Elements of Set Theory by enderton in good condition is going for $43.71 on amazon.
the international edition is missing the chapter on galois theory
it is also missing the index
Is that a big problem?
https://bookstore.ams.org/view?ProductCode=TEXT/72 I found this neat little book which I am gonna use
Bit expensive, is it not?
up to you, i just wanted to inform you
it is a bargain price for having the majority of the content
paper and print quality may be subpar however
Got it, I found lecture notes on Galois Theory from a different Artin
well you can get a pdf for free
As long as it is readable, I don’t care. I own a stats book from the 50s, I believe
maybe they want a hard copy
I see
Physical > pdf
tbh I have gotten used to digital copies by this point 
I look at enough pdfs in AP Lang, I don’t want to look at any in my free time
fair
in my country there is a pdf printing service
you can get it printed and bounded for very cheap
I own a printer, but not a three-hole punch to fit it into a binder
well you can print relevant chapters as you go along
Is it in the United States?
Fair enough
you can buy folders to store them too
having a printer is a great advantage
