#serious-discussion
1 messages · Page 540 of 1
These articles make mathematics seem so cool
But every time I want to learn math and I get to doing exercises I want to give up so easily
I quit easily if I can't see any immediate/quick improvement or progress and writing a shitty + incorrect proof for all your assignments without really getting better at it demotivates me a lot
patience and appreciate the current thing you're learning, try to find what's cool about it
Oh it's all cool as hell! That's not the issue
I always thought exponent rules were cool, and that's where it started for me just fascinated in simple stuff really
I spend a lot of time with stuff just thinking about it and not getting anywhere or going down false paths, I think that's part of undestanding stuff
like I see it as, knowing what something isn't is a part of knowing what something is
I have no clue what you're saying
I love going down false paths too, I think it's just the idea of "exercise" that trips me up lol
Feels like there's an obligation to be right/fully understand it after you're done
yeah I was not a huge fan of exercises if I didn't like them in the past, it depends on the author or my mood
Which I know isn't true and understanding will develop further as you learn more things
Just me whining
some exercises I see as just like, boring trivia, others I kind of see as interesting stuff that kind of are a small piece of something bigger, idk
I think the latter sounds fun
Working on a bunch of small parts of something to put them together
Makes it a lot more approachable
I just try not to hate anything and just sort of hold off judgment, like eventually after more breadth I'll come back later with more appreciation and try again
that's how I felt about analysis and topology at first, didn't care for them initially
Analysis interests me the most but God do I suck at it...lol
felt like pointless abstraction, idk I eventually got a taste for pointless abstraction... err maybe "pointless" is the wrong word for talking about topology lol
you're still young too
It's a plugin from an exterior application, I'm not sure if I can discuss it here as it's technically against Discord's ToS. I can DM you about it if you'd like?
idk, for me my brain and how it solves problems has shifted a lot as I got a bit older
so like certain things seem clearer or make more sense, idk just time I guess maybe and change of taste
Yeah I guess I just need to keep trying stuff out until my perspective shifts enough
To either give up on it if I find myself uninterested, or maybe it'll finally click and I'll stick with it
I think there's also a kind of illusion that all the stuff in textbooks was just worked out in the same time you're expecting to read it yourself when really it happened over the course of many years and different people and they're sort of compiling the most efficient/clever proofs into one book
Mmm
like definitions often seem unituitive at first because people had sorted through a bunch of bad ones initially
Oh that's cool
And that's why I've seen people recommend to take out parts of definitions and see why it would break them?
Yeah i don't need it. Don't really know what I'm going to change my status into
"break them" is wrong but you get what I'm trying to say I think
most people don't think "preimage of open sets is open is continuity" immediately haha
yeah definitely
Yes :p I still don't get that either
like I kind of hated definitions when I was younger cause I'd fight it too much
like field axioms were obnoxious to me when I first learned it, seemed too arbitrary lol
I thought defining two binary operations was redundant when you had log/exp maps
well this is like, learning linear algebra first time not taking any abstract algebra at that point or something
definitions are kinda nice now, like if I ever get stuck I can kind of lean on them and just like, write out the relevant definitions and start combinatorially bashing the definitions together to see if I can make something stick lol
That's what I did
plus you get more tricks of ways of thinking in your tool bag to try on stuff
idk the good thing about math is it's pretty much endless so there's always gonna be something to work towards and refine and think about no matter how simple, which is a good distraction from say, existential dread or whatever
LOL
True
i guess my dream came true
But it's sadly not that impressive since the average grade was B 
wish the test was harder so that i could have known how well i actually would have done
oh well at least it feels like ive learned a lot from this course
guess that's what's the most important
yeah a homomorphism f satisfies the condition f(x+y)=f(x)+f(y)
where you can replace + with any operation
and the operation for the left hand side and right and side do not necessarily have to be equal
there are a few more details but that requires knowledge of group theory
Hello
Hello
LOL
valley
and this is very interesting because whatever
but what exactly is more interesting about this
than like
$y^3 = x^4+ax^2+bx+c$
why don't we just slap new exponents and terms onto it?
valley
well one nice thing about the elliptic curve is if you intersect it with a line, it intersects in 3 spots, and you can work out that knowing it's rational at 2 points, the 3rd point will be rational, and you can think of this as a binary operation that ends up forming a commutative group
if you were to do it with that thing you wrote, you wouldn't be able to do that, although so what
you are welcome to study whatever you want but there are a handful of other good reasons to study elliptic curves
I guess one lame-ish type reason is in some sense we understand linear and quadratic polynomials fairly well, so cubic is basically the next level up haha
Hello
yo
Hello
kinda off topic but i just wanna ask
what's the appropriate research design for studies like "The Effects of ..." ?
it's a qualitative study
i mean that's only group homomorphisms
in general you have to specifically preserve every operation (like inverses and specific constants eg identity)
it's just that for groups those are preserved anyway without specifying
I've been looking at Math for so long that the floor tiles are reminding me of a Coordinating Plane.
pls
i need knowledge, and answers for this exercise
You could also open a channel y'know
will it rly be wrth onpening a channel?
Its usually preferred since this channel isn't meant for math help
ok thx
Sorry just saw the message, I'm not in a high level of Math compared to other people here.
i need to find theside lengths of an equilateral triangle with an area of 50. the method my teacher says i should use for this(this exercise strictly) is hernons formula. how do i reverse it from sides to area. to area to sides
np
under normal circumstances you wouldn't be able to, as herons formula requires 3 variables, but if you know it is equilateral you can just replace every variable in herons formula with x and then equate it to 50 and solve for x
thx
just remember the semiperimeter variable is not independent
no yea ik, my teacher said i had to do it for this one strictly
he says its not practical, but its to practice
i see
im so so sry for asking again
but how do i solve for x
well what is herons formula; write it out here
square root of s(s-a) (s-b) (s-c) right?
square root of s * 3s - 3x? im sry if i sound dumb
oh thats what u meant
square root of s*(s-x)^3, not 3s-3x
sry
yep
therefore we get --> 50 = sqrt(3x/2 * x/2 * x/2 * x/2)
50 = sqrt((3*x^4)/16)
you can solve it from there
@bronze pelican i mentioned bhargava's work to my advisor and he sent me this to read: http://www.rzuser.uni-heidelberg.de/~hb3/publ/bf.pdf
the author states "Bhargava’s charming exposition [Bha2001] of Gauss composition appeared
just at the right time, and the present book contains an introduction to the classical
theory using Bhargava’s cubes", so maybe this is interesting to you as well
seems like a cool writeup and i am familiar with the author (and respect him a lot)
also i feel called out
what do yall think about the monty hall problem
What do y'all think about prealgebra like x - 44 = 7
It exists
You can do
x + 7 = 14
Like say
X = 14-7
That's 7
X = 7
A method really.
tru
unknown length + length = 0
unknown area + unknown length + length = 0
unknown volume + unknown area + unknown length + length = 0
and for some reason you can't go any further
weird, i wonder if its cuz our math has some kind of bias towards 3D
It does not have a bias
yea i mean i dont think it does, but it almost feels like it
like "whats so special about 3D?"
i dont even know what your message says
You can define a cross product that’s pretty special
that leads you to believe in a bias
But yeah your message is kind of word salad
7 dimensions are special, i agree
lol
sometimes, 3D interpretations make things work well in maths, and for a brief moment i feel like theres something special about 3D
or something along those lines
and then i immedietly assume "no i must be biased or something"
I feel like the fact that you can only define cross products in certain numbers of dimensions shows why cross products just kind of suck
i dont think so
You can’t
at least not in the same generalization
It’s to do with division algebras over the reals, once you have that many dimensions they fail, I think it’s the Jacobi property, and so you cannot define an exterior product
oh rip
its related to the fact that there are 4 and 8 dimensional real division algebras
oh damn, wew said that
Sadge
i can't off the top of my head, but i guess one that i was referring to earlier was there being no quintic formula, but tbh that doesn't really apply imo
But there is a quartic formula
Do custom math equations with definitions exist?
So is 4 dimensions not the special one?
It’s 0 aktually 
idk man, i have no intention of making my murky illogical feelings towards math any clearer
It's 299792458
Oh look, roughly the speed of light in a vacuum
i am not sure what you are asking but i am gonna go with yes
What a quip!
What if the universe is 26 dimensional
i dont think anything would change
ryep
Nooooo my sphere packing nooooo
in highschool our physics teacher talked about this with us
Can I make a math equation and define it ? (Also can I make my own function?)
can a 3 dimensional being recognize living in say 4 dimensions
Isn't cross product just shorthand for something you can do with just dot product and projections
Sure but it’ll most likely be useless and/or non-well defined
i think the first equations/functions i made was to "reverse the digits" and i thought it was really cool
On April fools sometime I'll define that 2+2=5 :troll:
why
It's just a joke
wasnt there a celebrity that did that?
Trivial ring moment
Summations go like EEEEEEEEEEEE
In forth u can define 2 to be 3 and it’ll be stuck like that forever
no
Random indian guy defined 2+2=5
forte
cross product exists in only 3 and 7 dimensions and that's a result of the parallizability of the 3 and 7 sphere
This isn’t technically correct, I should say “projection from Z into the trivial ring moment”
Terrence Howard thinks 1x1 = 2, has a secret system called 'Terryology' and spends 17 hours a day making nameless plastic structures
his a fucking topologist
x³+y³+z³=k
Nice affine variety. Let us name them “elliptic planes” and harass loch with them
i bet nobody cared
Z is initial, so this is implied
I thought I’d make it explicit for the fans in the back
I bet you can solve x * 2 = 138
i bet nobody cared
Look boss... as a fellow Azerbaijan fan (I fucking love the Caspian Sea) I regret to inform you that I can, in fact, NOT solve that equation
assuming this is in F3, x=0
Edit
x * 2 = 138
Step 1: say x = 138÷2
Step 2: do 138÷2
Step 3: say x = 69
So it's 69 * 2 = 138
Method I learned

Well (u \cross v) is just a vector x such that x.u=0 ,x.v=0 from these 2 equations you can get direction and from the equation that ||x|| = ||u|| ||v|| you can uniquely find the vector
Well ok you get 2 possible cross products
You have to exclude one of them via convention
wdym make an equation
Fellow azerbaijan fan?
Like make math equations or math problems
,w azerbaijan
if it's satisfiable then sure
Example?
satisfiable meaning there are solutions
i mean solutions are overrated
just string a bunch of symbols together and see what happens
it's a term from logic
Maybe some college nerds
I use tensor products on occasion
More like dotcircling
yea but ur a "college nerd" ryc
you can find vectors perpendicular to two vectors, but you can't define a cross product in a way that's bilinear, produces an orthogonal vector, and follows the necessary magnitude properties in any space that isn't 3 or 7 dimensions
Actually you would need
(u X v)+(v X u)=0 for this to truly be a "cross product"
I see
ryc what would you rate tensors out of 10
not theoretical boffins like ryc
⨁
direct sum
H
TENSORS
Σ looks like a summation symbol
azerbaijan fan what stage of maths education are you at
tensor densities
IS IT TENSOR TIME YET
guys i made a new operator: ⓞ
Stage 6: algebraic expressions, pi etc. Combined into one.
like
what year of school
IT'S TENSOR TIME
IT'S TENSOR TIME LET'S GO
Barely!
You use tensor products in farming all the time
fuck
Not revealing any of my personal information
I wonder when carpenters will be replaced
age isn't personal information
well @heady hemlock there you go!
ryc uses tensor products when farming
ol farmer ryc
come along to ryc ranch
it is lol
see?
damn
we have to know to make sure you're complying with the rules

Someone made it for me a while ago
So you can bring it up with them
Got anymore pixels?
⊕
i like the new pfp
I see
no that webpage is horrible
I'm not sure how it would be made better
ryc
Hmm
hello
Hello
welcome to our humble server
Really cold take but terry tao for life
are you younger than 13
that's all that's important
Or 16 in certain countries
i would never say my age anywhere online
Same
Responding in this way inadvertently answered ally's question. But the reason this came up is that discord math server is large and if we allow people under 13 we can get shut down
No hatred for kids
im sure some peopel are comfortable with it, but i take a hardline approach to prevent sharing any personal info. probably an old habit from back when everyone used to get doxxed e-z
and when i used to be concerned about ip-grabbers
oh ok
"If I say my age accidentally then I get banned"
You shouldn't have told us this sentence
ikr lol
Because that only happens if you're less than 13
Im sorry this happened to you
tho second line kinda backs it up?
So you've confirmed it unfortunately for yourself
See you in a few years
I think the line "This is what every server does" could save them?
come back when you're 13
i mean i guess its a matter of time til they fuck up
And I am literally required now to ban you that I know. So let me give you some advice here in the event that you join other servers or try to return to some of your existing servers (not this one ofc) with alts
Nobody actually cares personally about the < 13 rule for moral reasons, it's strictly because if we, as a larger server, allow people that we know are less than 13 years old
Discord will shut this place down
However we're not required to be investigators
I save ppl that are fit for me as friends so yeah
Just that once we know
tbh its also that we can kinda tell from the way "someone acts"
which is pretty much what ally took note of
But where can I define / make equations / math problems
We have to act. So sadly I am required to ban you but going forward, keep it plausible that you're more than 13. Don't reveal even that you're year 6, because then this immediately puts suspicious
ryep: yes but plausible deniability is fine
Again we don't have to investigate or act on suspicion of maturity
Go on top.gg
But they might also include that rule to be 13+
Its an easy place to find stuff like that
although in my opinion they're still in plausible deniability, the fact that they haven't rebutted to our claim that they're < 13, is really not playing well to their defence.
Hide it
Its that simple
Pretend that you are year 8
Even discord doesn't do it for moral reasons, they just aren't allowed to collect info on you if you're so young
one of the first lessons i learned on the internet
O7
Anyway sorry but... good luck on keeping it under wraps going forward
Just an unfortunate kid
tbh i got traumatized the first time that happened to me, was much worse than this situation
wasn't like super terrible, but very embarassing
Goodbye
i think they got it easy
I mean yeah we don't wanna be a dick to him about it
And thats how it should be
i mean i think that was the best way to handle it
Esp since officially there's no moral anything about that rule, it's all just legal/technical shit
true
So it's like yeah sorry it's gotta be this way but it is what it is
Yea
let this be an example to all in #prealg-and-algebra
This wasn't within the past year was it?

i only asked about it to see what they had been learning 
I'm gonna miss him

do u remember tinychat?
Not offhand
fucking terrifying
He was our best man 😭
oh
i mean tbh that guy was being a bit of a troll
Nah but jokes aside I mean, he should've been more careful
I can't tell what level of sarcasm that was
Lol it's pretty Schrodinger sarcasm
Like on the one hand obviously it's an unfortunate situation for him
Every kid is
But on the other he is on paper breaking the rules. It's not a moral rule but then the game is don't get caught
And he got caught that's on him
Glad I'm not a mod
i mean some just come in 'ask exam questions' thinly veiled as 'homework help plz' and just leave
i don't mind them tbh
did i do something wrong 😨
no its fine
Ok not absolutely every single kid in the world is like that but you get my point
i kinda wanted them gone tbh
i sometimes do think that almost every single kid is tho
Nah you were fine it was incidental
Like it's not on us to not accidentally figure out someone's under 13
the year 6 bit was incidental
but like in some countries that's 12-13
so i could have just assumed
i wonder if i'd let my kids on the internet at 13. tbh i probably wouldnt' be able to stop them
Only if i had somewhat control over what kind of communities he were joining
yea i'd like that
i know that i would've absolutely hated if my parents did that to me, but i'd really want to
So here's my take. We're not required to be investigators until there's already suspicion. And in principle someone can hide it perfectly
yea it would, but i doubt they'd feel grateful (like i wouldn't myself)
And if something goes wrong then ally is automatically the scapegoat
Glad we could figure this out
If we want we could in principle go out of our way to search and destroy. I'm not particularly interested unless the person is a problem. In which case I want them gone for that reason
what? 😨
i mean that guy did a terrible job at hiding it
wdym I'm the scapegoat
But on paper they are the ones breaking the rules
So it is their job to do the hiding
if he claimed at least once, that he was "im over 13", they would've survived
If they get baited
No I'm joking. Don't think youve done anything wrong ally
It's on them for being baited
i mean they fucked up
it feels like it's my fault
no its not lol
That's kinda why kids under 13 shouldnt always be on the web
all he had to do was say "i'm over 13" and it would've been all over
They don't always know what to say and what not to say
I don't think you need to feel guilty for being the baitor unless you're a dick about it which I don't think you were
yeah but i was the one prodding
they didn't have enough experience on the internet its on them
they've learned a lesson on the internet
it would've happened anyway one way or another
my intentions were to make sure they were following ToS when i could have just left it
ally its not a big deal, and its not ur fault
they fucked up, and it would've happened anyway
probably would've been a mod that noticed, or they would've outed themselves another way
At least we now know not to make ally mod. Cuz then 50% of the server would be purged
lol
as much as i'd like to tell you about the time when i was in their shoes, it's too embarassing
i really do think they got it easy, so i don't think it wasn't that bad for them either
Sorry, don't take a single word i say seriously @alpine kindle
Assuming 50% of the server is < 13... Sounds like something a 12 year old would do

Thought u said i wasn't a prodigy 🤨
like the amount of people who talk in different channels
like you could "assume" their age from that
Just because you're 12 doesn't mean you're any good
ARE YOU SURE?!?!?
Sounds like something a 12 year old would say to throw us off
yea
ban everyone who only talks in #prealg-and-algebra 

i mean if they said "I'm 69" i would've banned instantly
i wanna ban all those people in #competition-math
always hated those comp maths kids at school, they were never nice to me
Yeah they got an ego
Most math people have a big ego
They do?
Yeah i was just about to say that
especially the ones who do algebraic geometry and category theory
I'm no better tbh
besides big ego behaviors
i genuinely cannot handle their massive ego
you can say simple phrases to check their ego
no math people have massive egos
based

Heh
qed
look out for elitist chumps
Athough I dont see how does that mean big ego
if you have to emote as a reaction then that is easy proof
it doesnt mean big ego
reactions usually show the ego
Oh I see
it’s obviously a generalization

Yeah
but people in sciences tend to have big egos
nothing wrong about it but usually you have to tread carefully
in my experience its just undergrads ive met
whenever you hear words like: "something"morphism, manifolds, (topo/homo/...)ology, "something"oid
you know ur talking to one
and some professors
Because I used to have a big ego but it got deflated by 50 needles
nah
its just language

that has nothing to do with big ego
Yeah that’s just standard math language
easiest way to check if they have a big ego is they have "algebraic geometry" or category theory" roles.
behavior like gatekeeping the language
tfw talking about topology makes me an egoist

Although I would admittedly find it a bit wonky if you’re using it with a layperson
Since at that point you’re probably just posturing
thats wonky indeed
yeah thats a sign of big ego or complete unawareness
if you dont know your audience and you talk as if they should know
You can just... Look the words up
or if you do know your audience
If you wanted to
happy pride month emma
i mean if someone says "it's isomorphic" in a pre-university channel, i'd think they're being a bit much
instead of "its same bro"
Happy pride month

people here do this
Honestly though if you’re studying math you should eventually get used to fancy-looking words
But yeah for pre-university it’d sound pretentious
thats a bit much yeah obviously

You guys are being gross and overgeneralizing
there are still cases where people are rude to you because you do not know something they assume you should
i said i was generalizing
Fair enough
if i were to say businessmen have big egos you wouldnt be saying this
because stereotypically they do
Fwiw my statements are meant to apply to a very small proportion of mathematicians
I mean that's a different thing entirely
i do think maths students stereotypically have big egos tho
but thats just my opinion
You are not in a business man server
Saying that business men have big egos
You are in a math server
I see it happen somewhat often here
i think 2nd year uni students and usually 3rd have big egos
and irl
In general though these statements are certainly inaccurate ofc
And attributing elitism to the fact that people are just studying things
Instead of behavior
Is fucked
lol
Like at the end of the day you should just judge a person after you know them instead of using some overly general preconception
fucked?
no ones saying "if u study X, then big ego"
You literally said that
where?
i said math people have big egos as a generalization
Here
I mean you did state this
idk man it seems like u aren't taking obvious social cues
Honestly I’d expect otherwise the more you study
yeah thats what ive noticed
Like all my professors are humble
people usually drop their egos
^this ones good tho
i have a good amount of humble nice professors
Ryep your takes are just bad
its definitely not gross?
i guess u have a different sense of humor
if someone mistakes you as elitist or big ego just brush it off
it should happen often
since popular belief is that math people are elitist and have big ego
the popular belief is unfair
Case in point being ryep here
but i dont know if id say gross. you definitely have to have experienced being misjudged
I have
you think its gross?
Yes
thats an extreme reaction imo
did anyone asked???????
But yeah a lot of popular beliefs are unfair, although I do think it should be called out since many of them are just flat-out wrong
all my family can think math is elitist i cant say its gross behavior
thats gross?
compromise and understanding are good things if you value having a family
Lol
you cant just stonewall everyone and pass quick judgement
this is getting weird lol
i dont take shit from my family?
Yes
stonewalling is an extrapolation i guess
look emma, sorry if that offended you, but by all means it was a joke, ill try be mindful or a bit more obvious next time i joke about category theorists and algebraic geometers
I mean you should realize that a lot of people online can't tell when something's a joke or not
Especially on a math server
i'll put 🤣 next time
And especially when you are echoing common misconceptions
emma i think the problem i have with you is that you are saying its gross
i dont think thats going to change anyones mind
I mean

People who do automorphic forms are actually kinda arrogant
If someone says something I think is gross
But it's deserved
I'm just going to call it out

And if I'm wrong I'll apologize
Dami just joining in 
i never interpretted big ego thing as offensive
i didn't realize "category theorists" and "algebraic geometers' having a big ego was common misconception
it just represents a passion about something
I mean there's a lot of stereotypes around people doing AG and category theory
Perhaps “confident” would be a better word?
i alwasys thought the "set theorists" were the oens being discriminated against
Are there? I've seen the UGCT stuff but
Why prejudice others for what they study in the first place 
Yeah the ugct stuff is the main one
bruh its in the language
if someone makes a whole new language and you have no clue what they are saying you will prejudice
What do you mean? I've only been skimming along so sorry if I've missed something
its normal behavior
Among working mathematicians, at least I don't see any stereotypes about the people studying
Huh??
awesome i didn't find it funny
Maybe about the math itself being super abstract
i agree
its mostly students
idk there are weird subcultures
model theory is very cool
i have discovered
But other than UGCT stuff which is tbh... A phenomenon
what do you misunderstand?
I feel like most people don't diss most other people
yes i do like enderton
sloth, whats an automorphic form

do thing on thing and it turns back into thing!
(I think)
i wanna be like jech one day!
Any other people with disabilities have really bad problems with their university math department
I mean I personally didn't do category theory for a while because people were weird about it
Actually is CT in undergrad that bad? Since I’ve seen it pop up occasionally
what type of disability?
I guess it's more like you don't see why CT is useful
you asked a question i was addressing the specifics
They're nice functions on the upper half plane from a Fourier analytic angle which often carry interesting arithmetic data
no ill answer
UGCT is undergrad category theorist
But it feels like some advanced undergrad algebra texts have a little bit of CT too

Like not being accommodated for instance
The idea is people doing abstraction masturbation or whatever
And not knowing basic things
well yeah
That aren't category theory
it seems category theory looks at the context of arbitrary objects
whereas model theory looks at how arbitrary objects are constructed to satisfy logical sentences
It's a meme that's used to describe undergrads that get real into category theory but don't actually learn anything in the subject other than words
i usually have to ask for more things or go to office hours a lot
Look it up and you'll find the meme
Ah I see
they're both cool in their generality
I don't get it. How do you get into CT without doing literally anything else
I'm reading Goldblatt rn
slowly ease way in
It's lit
Mainly that it feels general
learn about functors after being introduced to homotopy or something
yeah but like cat theory usually needs more background to get the examples
and then talk about categories
specifically topology
They're like whoa everything is a category etc
I guess
and get a lot of examples
Most people described by that meme don't even get far into category theory lol
like topology is almost a requirement for learning cat theory from most books
it feels

i thought it would be algebra
lol
Ngl I had a bit of a phase where I wanted to do everything as generally as possible
both or neither
ok well algebra is half-necessary for like everything
My real analysis professor refused to give me extended time for exams because I couldn’t take them at the same time as other students due to a busy schedule, suggesting i might use my disability as a pretense for cheating. Nothing happened though, because he’s famous, and I partly blame it on elitism in math and if people want to be sensitive about it maybe use it as motivation to take it more seriously
It’s one of the reasons I left college
Anyway Alison let me know if you want to discuss enderton exercises with me
At some point

yeah I've been doing some of them
what is endedton
a logic textbook
oh nice
what you do so far
Oh wild
I'm on chapter 2 already
2.2
sad to hear
so you lose the math community stuffs
yeah
to be honest if you dont involve yourself in math communities in college you always have online
I'll be able to somewhere down the line
but online is usually worse
I was planning on talking to clerk about proofs and types by Giraud
But I keep getting too anxious
if there are no math communities in college, the books are always there
no?
And I also spent all of this week reading Goldblatt instead
the point of communities is for practice communcating math
Maybe next week will be a Giraud week
i feel like i know the authors of books more than some people from college
Yeah it's a big one
Lots of information
Is that the one where they develop basic model theory or basic proof theory
I forget
Both of those sections are really big
Chapter 2 is the majority of that book I think
And then chapter 3 is decidability/undecidability/incompleteness
Which is neat
And is what I study to some extent
In grad school
model theory
2.4 is proof theory i think
wouldn't this be a monomorphism, not necessarily an isomorphism
oh
oh i see they then put isomorphism onto B
Yeah
Can I always reduce an isomorphism to "structure preserving bijection"?
i mean that's what it is
yea
only true in concrete categories
i didn't say bijective morphism i said bijective homomorphism 
Like what's the problem with just calling a homomorphism a function
I remember that part being somewhat problematic
functions don't necessarily preserve structure
also you have categories where bijective morphisms arent isomorphisms 
examples please
oh wait
nevermind
eg a function between semigroups would just be a function between their sets, whereas a semigroup homomorphism would be a function f where forall a,b f(ab) = f(a)f(b)
topological spaces, say the map from [0, 2pi) to S^1 given by t -> e^it
yeah
yes
top is concrete though?
so you have a bimorphism
oh you crossed it out
no its correct
you have categories where isomorphisms cant be interpreted as bijective functions on sets
oh yeah i dont know any good examples
same lmao
injectiviity and surjectivity is not invariant under homotopy
so that works as a counterexample
my point is that it depends on what notion of isomorphism you are working with
it's not like I need help about a homework
I just wanna know how to calculate an overall percentage
wdym by overall percentage
I've been seeing some of the tiktoks and they be giving some numbers
99 like that 40 to that 60 to this
then *overall [number] "
i still don't get what you mean
what
this is what I saw
then some bunch of random numbers
then an overall
I wanted to chat in #discussion but I think they didn't saw my chat
so I went here
is that why you joined a math server @sleek wagon ?
i dont judge
I've learned a few more
someone told me how calculus works but I still don't know HOW it actually works
(by numbers)
calculus can be pretty hard to grasp yeah
so... how to calculate an overall percentage
guess you'd have to study real analysis for that
it's more fun if you try to figure it out yourself
mode mean media
try to experiment and see if you get the same number
I mean this is why I joined to this math server to also learn because if I try to learn it by myself I'm gonna waste my time getting distracted on my phone so why not get tutored by a phone in discord
that's what math is all about
problemsloving
im currently teaching u math in that sense
yeah but if someone tutored me it'll be more sensable for me
but like fine if you just want the answer then i can just say it
abt on how to calculate an overall percentage?
ye
its not hard
do you know how to find the average
maybe that's how?
to find the average?
yeah but why 12, why not 11 or 2
I tried calculating this image and I got 27.3
because just 12?
there is a logical reason to it
what is it
tried to divide it into 11 and got 29.81
tried dividing it into 2 and got 164
????
nice, well youre making progress
but say we have two numbers, for example 2 and 12
I mean that's what the user wrote
do you know what number is equally far away from 2 as it is from 12
like right in the middle of those two
6?
it's odd
if i add 5 to 7 i get 12
and if i subtract 5 from 7 i get 2
that's how you can check that your answer is correct
I'm trying really hard to process what you mean
we wanted to find a number between 2 and 12 right
yeah, just like u said
basically if i drew a number line i would see that 12 is 5 numbers to the right of 7
and 2 is 5 numbers to the left of seven
so the distance is equal
nono, I don't get how we went to calculating an overall average into a basic math
that's what I was not getting
well what we just found now is the average of 2 and 12
which was 7
and we also see that 2+12 = 14
14/2 = 7
i divide by two because there are two numbers that is being added
if there are something I still don't get like this, I'd likely just get tutored by my cousin
thanks for still trying to help me though
just getting the answer wont help you get better at math
but yeah i see that youre kinda running out of patient with me
what
what getting the answer won't help me get better at math?
you almost did it correctly
nope
it does right?
no if i just instantly give you the answer to a problem then you wont really be training your problemsoving skills
yeah
bye
bye²
do you enjoy math btw @sleek wagon ?
neutrally yes and no
it's like at the same time I wanna learn math and also the same time I don't wanna learn math
50/50
math can be really frustrating at times too tho
yeah, that's what makes me don't wanna learn math
yeah understandable
but I'll also need math for coding
if I wanna make a game
since game needs math
game needs a countable currencies
soo
yeah
I need math to make a game
but intentionally, I quit coding
damn
I'm gonna continue coding once I get my own laptop
oh i see
it's not like I fully quit
I'm just tired using my brothers laptop
plus all I do in my brothers laptop is play ges
games
but I'll guess serious with coding once I get my own
and i guess it's also fun to see that the code you write works
it's the same with math
it's not the frustration that makes it fun, but getting closer to a solution
and eventually finding it
i just made this long time ago
same as it's not fun to be debugging a code
but man it feels like heaven when you've cracked it
it's like "what's next after [number] then if you got it right then it'll say "very math pro" then if u go it wrong it'll say "very math noob"
I created that since like November
nice
idk if this file is the hardest one I made or the other one
the other is in my other phone
where all the codes are in
this one, I just downloaded it thru my other phone
neat




