proposition: Lemma mderiv_mulC i c p : (c%:MP * p)^`M(i) = c%:MP * p^`M(i).
proof: Proof. by rewrite !mul_mpolyC mderivZ. 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