Show that $\operatorname{Supp}(M)=V(\operatorname{Ann}(m))$
68449
$\operatorname{Supp}(M)=V(\operatorname{Ann}M)$ if $M$ is finitely generated
59872
How to prove $\inf(S)=-\sup(-S)$?
94558
Show that $\phi(mn) = \phi(m)\phi(n)\frac{d}{\phi(d)}$
61939
Induction of inequality involving AP
124786
Prove that V contains a subspace of each dimension
153272
Basic question about $\sup_{x\neq 0}{} \frac{\|Ax\|}{\|x\|} = \sup_{\|x\| = 1}{\|Ax\|} $, $x \in\mathbb{R}^n$
51898
Show that $\operatorname{Hom}_{R} (R,M) \cong M$
118996
Prove that $T$ is an orthogonal projection
132595
$\sup_{0 \leq M \leq I_{\mathcal{H}_1}} \frac{\operatorname{Tr}[\rho M]}{\operatorname{Tr}[\sigma M]}$ satisfies Data Processing Inequality
46265
Minimal polynomial of the operator $T:V\oplus W\to V\oplus W$
94781
Prove that $M(t)=\sup_ {a \leq x \leq t} f(x)$ given $f(x)$ is continuous on $[a,b]$
137511
Trying to show that $\sup \{b^p:p\in Q,\;0<p<x\} = \inf\{b^q:q\in Q,\;x<q\}$
23071
Showing that $f_0 (x_1, \ldots, x_m) \mathrm tr A =\displaystyle{ \sum_{i=1}^n} f_0(x_1, \ldots, Ax_i,\ldots, x_m)$
89089
Prove that there is a unique inner product on $V$
153128
Proof of associativity of convolution
53857
Showing $\sup \{ \sin n \mid n\in \mathbb N \} =1$
24856
Proving sup(A + B) = sup A + sup B