Can This Matrix Proof Be Done Without the Definition?
42141
Proving Distributivity of Matrix Multiplication
75690
Does the given matrix have a square root?
58491
Proving the inverse of a matrix as a polynomial of matrices
8970
Proving the cross product matrix tranformation identity with an alternative solution
61274
If $AA^T$ is the zero matrix, then $A$ is the zero matrix
127664
Inverse elements in the absence of identities/associativity.
54740
Proofs of Determinants of Block matrices
4517
Showing a $2\times2$ matrix is invertible
150387
Questions about matrix rank, trace, and invertibility
120407
Is every noninvertible matrix a zero divisor?
53840
Understanding proof of unique factorization of polynomial in Linear Algebra Done Right
24441
Inverse of a matrix is expressible as a polynomial?
80544
Need verification - Prove a Hermitian matrix $(\textbf{A}^\ast = \textbf{A})$ has only real eigenvalues
123458
Prove $( \lnot C \implies \lnot B) \implies (B \implies C)$ without the Deduction Theorem
131728
determine signature of matrix
83178
Matrix Group induction proof and order of elements question
110271
Given a matrix with non-negative real entries, can you algebraically prove that it has a non-negative eigenvalue?