proposition: Lemma mdegMn m k : mdeg (m *+ k) = (mdeg m * k)%N.
proof: Proof. by rewrite !mdegE big_distrl; apply/eq_bigr => i _; rewrite mulmnE. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq path) mathcomp(choice fintype tuple finfun bigop finset binomial) mathcomp(order fingroup perm ssralg zmodp poly ssrint) mathcomp(matrix vector) mathcomp(bigenough) ssrcomplements freeg