prove $\phi$ is linear
38427
Holomorphic function $\varphi$ with fixed point $z_0$ such that $\varphi'(z_o)=1$ is linear?
138343
How to prove that the set $\{\sin(x),\sin(2x),...,\sin(mx)\}$ is linearly independent?
72551
Proof that $\rho = \pm1$ implies linear combination
69509
Showing a Linear Transformation is invertible
152379
If $V_1, V_2$ are $\mathbb{Q}$-vector spaces and $f \colon V_1 \to V_2$ is additive, then $f$ is $\mathbb{Q}$-linear
46065
How do you find all $n$ such that $\phi(n)|n$
147590
If $L$ is regular, prove that $\sqrt{L}=\left\{ w : ww\in L\right\}$ is regular
138819
Prove that $\phi(n) \geq \sqrt{n}/2$
47790
If $x \geq 2$ prove that $\sum_{ n \leq x} \frac{1}{\phi(n)} = \mathcal{O}(\log(x))$
142229
Prove that if $V \cap \text{Span}\{u_1, u_2,...,u_k\} = \{ 0\} $, then $Au_1, Au_2,...,Au_k$ are linearly independent
90435
Prove that there exist linear functionals $L_1, L_2$ on $X$
145447
bilinear form - proof
61043
Proofs involving limsup and liminf
37012
The number of summands $\phi(n)$
81879
$Av=λv$ basis proof problems
58329
Show that $y_1$ and $y_2$ are not Linearly Independent
119118
Prove $n\mid \phi(2^n-1)$