proposition: Lemma mpolyC_is_multiplicative : multiplicative (mpolyC n (R := R)).
proof: Proof. split=> // p q; apply/mpolyP=> m. by rewrite mcoeffCM !mcoeffC mulrA. 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