proposition: Lemma stablemx_unit (n : nat) (V f : 'M[F]_n) : V \in unitmx -> stablemx V f.
proof: Proof. by move=> Vunit; rewrite submx_full ?row_full_unit. Qed.
imports: HB(structures) mathcomp(ssreflect ssrbool ssrfun eqtype ssrnat seq choice) mathcomp(fintype finfun bigop finset fingroup perm order) mathcomp(div prime binomial ssralg finalg zmodp matrix)