proposition: Lemma conjmxVK (n : nat) (V f : 'M[F]_n) : V \in unitmx -> conjmx V (conjmx (invmx V) f) = f.
proof: Proof. by move=> Vu; rewrite -conjuMumx ?unitmx_inv// mulmxV ?conj1mx. 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)