proposition: Lemma conjuMumx (n : nat) (V W f : 'M[F]_n) : V \in unitmx -> W \in unitmx -> conjmx (V *m W) f = conjmx V (conjmx W f).
proof: Proof. by move=> Vu Wu; rewrite conjuMmx ?stablemx_unit ?row_free_unit. 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)