proposition: Lemma conjmx0 (m n : nat) (V : 'M[F]_(m, n)) : conjmx V 0 = 0.
proof: Proof. by rewrite /conjmx mulmx0 mul0mx. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat choice seq) mathcomp(div fintype tuple finfun bigop fingroup perm) mathcomp(ssralg zmodp matrix mxalgebra poly polydiv)