Linearity of Lebesgue measure: $\mu(AV)=|\det A|\mu(V)$
96394
Measure of Image of Linear Map
94489
Mean value property implies harmonicity
137099
Lebesgue measure of the set of zeroes of Brownian motion
128599
Linearity of convergence in distribution of random variables
147546
$f: \mathbf{R} \rightarrow \mathbf{R}$ monotone increasing $\Rightarrow$ $f$ is measurable
81879
$Av=λv$ basis proof problems
104258
Proof Verification: $\dim\mathrm{Im} T+\dim\ker T=\dim V$
28685
If every linear operator on $X$ is bounded then is $\dim X<\infty$?
66500
Proving that orthogonal vectors are linearly independent
133500
For an outer measure $m^*$, does $m^*(E\cup A)+m^*(E\cap A) = m^*(E)+m^*(A)$ always hold?
93684
Show that $\mu (E \setminus A)>0$ if $A$ is a nonmeasurable subset of $X$ and $A \subseteq E$, $E$ is measurable.
126769
Linear independence of columns implies non-zero determinant
19773
Is finite additivity a property of the Lebesegue outer measure?
51177
When are two norms equivalent on a Banach space?
82236
Extension of the Lebesgue measurable sets
24900
Homogeneity and Differentiability at $0$ implies linearity?
433
Problem about jointly continuous and linearity of expectation.