$f^{(n)}(0) = g^{(n)}(0)$ implies $f(x) = g(x)$?
130180
Smooth function with all derivatives zero
88928
$F:G\to B$ is an isomorphism between groups implies $F^{-1}$ is an isomorphism
60348
How do I prove $F(a)=F(a^2)?$
98271
Why does $(x \to a) ≠ (x = a)$ , But $f(x \to a) = f(x = a)$
35889
Suppose that f(0) = f(1) = 0 and x ∈ (0, 1). Prove that there exists c ∈ (0, 1) such that f'(c) = f(x).
83894
$f(x^2) = xf(x)$ implies that $ f(x) = mx$?
33989
If $\int_0^1 f(x)x^n \ dx=0$ for every $n$, then $f=0$.
121771
Proof $f(x)\equiv 0$
36602
$a^m=b^m$ and $a^n=b^n$ imply $a=b$
93964
Proving that $f$ is a bijection from $N$x$N$ to $N$.
55232
Show that $g\circ f\equiv 0$ implies $\det Df\equiv 0$, where $g(x_1,...,x_n)=x_1^5+...+x_n^5$
39090
Finding functions such that $f(g(x)) = f(x)g(x)$
5069
$GL_n(\mathbb F_q)$ has an element of order $q^n-1$
46355
If $[G:H]=n$, is it true that $x^n\in H$ for all $x\in G$?
131876
Show that $\int_{a}^{b}{x^{n}f(x)dx}=0$, then $f=0$
83036
f(g(x)) has a degree divisible by n
133614
Why is $x^{\log_x n}=n$?