proposition: Lemma mleadX p k : p != 0 -> mlead (p ^+ k) = (mlead p *+ k)%MM.
proof: Proof. by move=> nz_p; rewrite mleadX_proper //; apply/lregP; rewrite mleadc_eq0. 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