How to prove $f$ is in the span of $f_{1,\cdots, n}$?
102856
Intersection of kernels and linear dependence of functionals
149549
Infimum of $n$-th root of $n$
158582
Prove that $\{\frac{\phi (n)}{n}\}_{n \in \Bbb N}$ is dense in $[0,1]$
66758
$f_n:[0,1]\to [0,1]$ continuous, $f_n\to f$ uniformly, prove: ${\frac1n}\sum_{k=1}^{n}{f_k} \to f$ uniformly
21612
How to prove this form of $n$?
156905
Prove $f_n$ has a uniformly convergent subsequence on $[0,1]$.
95976
Given a PRF $F$ , is $G(s) = F_s(1)\|F_s(2)\|\cdots \|F_s(n+1)$ a PRG?
31522
Proving $f$ has at least one zero inside unit disk
155974
Show $||Tx||_2 \leq ||(v_n)||_2 \cdot ||x||_{\infty}$
78471
Closure of $\{\frac{1}{n}\}:=M$
1570
Show that log $Fib_{n}$ is $\theta(n)$
121886
Proving image of $f:D^n\rightarrow \mathbb{R}^n \;$ contains $\;D^n$
107389
Show that the vector space of real functions is not finitely spanned
115459
Proving this $F_{n+1} \cdot F_{n-1} - F^2_n = (-1)^n$ by induction
67291
Prove that there exists $n\in\mathbb{N}$ such that $f^{(n)}$ has at least n+1 zeros on $(-1,1)$
62342
$x_1 \cdot \dots \cdot x_n=1 \implies x_1 + \dots + x_n \ge n$
13696
Proving $\limsup\frac 1 {a_n}=\frac 1 {\liminf a_n}$ and $\limsup a_n\cdot \limsup \frac 1 {a_n} \ge 1$