/sci/ - Science & Math

>>11427012
Thales.
>>11427564
[math]f[/math] is differentiable and thus continuous. Consequently, by Weierstrass, [math]f[/math] attains a minima. The minima can't be [math]a[/math], because [math]f'(a)><0[/math], and it can't be [math]b[/math], because [math]f'(b)>0[/math], and thus it's in [math](a, b)[/math] and is necessarily a critical point.
>>11427572
>additive identity
What do you mean additive identity linear map?