Show that $d^T Z\sim N(d^T\mu, d^TVd)$
124827
Show that $Y\sim N(a+A\mu,AVA^T)$
7384
How do I prove that $m(TE)=\left|\det(T)\right|m(E)$?
17241
How to prove $ \prod_{d|n} d= n^{\frac{\tau (n)}{2}}$
151111
How do I show that $\frac{n}{\varphi(n)}=\sum\limits_{d \mid n} \frac{\mu^2(d)}{\varphi(d)}$?
117688
Prove that $\def\Aut{\operatorname{Aut}}\Aut(\mathbf{Z_{n}})\simeq \mathbf{Z_{n}^{*}}$
143608
Show the Trace$(B)^{2} \leq$ nTrace$(B^{T}B)$
120985
Prove that $\mathrm{Res}[f/g,z_0]=\frac{f(z_0)}{g'(z_0)}$
15586
Volume of the torus with an integral
117318
$\mathbf L\mathbf D\mathbf L^\top$ Cholesky decomposition
94383
Prove that $A^TD-C^TB=I$
137982
Show that $\textbf{ZF}$ shows $\phi$ is $\Delta_1$
37283
Show that $\frac{X-\mu}{\sigma}\sim N(0,1)$ using moment functions
121880
How to show that $|D_{2n}| = 2n$ via the presentation?
54737
Proof that $V = \sum_k U_k$ and $\dim V=\sum_k \dim U_k$ implies $V=\oplus_k U_k$
359
Show that $\ker \hat{T} = \text{ann}(\text{range } T)$
55488
Proving that $\operatorname{codim}(X,Y)=\dim(\mathcal{O}_{X,\eta})$
44653
$(\int f_1d\mu)^2+\cdots+(\int f_nd\mu)^2\leq(\int \sqrt{f_1^2+\cdots+f_n^2}d\mu)^2$