why does F=g+c?

[lethal valley]

what do you mean by consequence

oh

yeah I saw that

do you think it could relate to the c mentioned earlier in the page

[gaunt turret]

notice that (F-g)'=0

if a function has derivative zero everywhere, then it is constant

hence F-g=c so F=g+c

[gaunt turret]

(this follows from mean value theorem)