Hoffman and Kunze, Linear Algebra Chapter 3 theorem 20
141067
Theorem 20 Hoffman Kunze Linear Algebra book Section 3.6
78298
On the nilpotence of the matrix $AB-BA$
6088
Theorem of Arzelà-Ascoli
46265
Minimal polynomial of the operator $T:V\oplus W\to V\oplus W$
59803
Converse of Schur's Lemma in finite dimensional vector spaces
154117
Showing $[(fg)h]_n = [f(gh)_n]$ in the linear algebra $F^\infty$
33642
Finite dimensional subspace of $C([0,1])$
79328
Proposition 5.15 from Atiyah and Macdonald: Integral Closure and Minimal Polynomial
27248
If $A$ is an $m \times n$ matrix, prove that $Ax=0$ has infinite solutions $\iff$ $\text{rank}(A)<n$
39334
Non-degenerate bilinear forms and invertible matrices
126089
Showing $U(20)$ is not cyclic: Is my proof correct?
26183
Prob. 9, Sec. 4.3 in Kreyszig's Functional Analysis Book: Proof of the Hahn Banach Theorem without Zorn's Lemma
27478
Proof that two basis of a vector space have the same cardinality in the infinite-dimensional case
132059
Minimal polynomials and cyclic subspaces
29470
Problem involving Derivative and Antiderivative operators in Hoffman and Kunze's Linear Algebra
117211
Infinite linear independent family in a finitely generated $A$-module
92802
Proof of Borsuk-Ulam Theorem .