proposition: Lemma mcoeff_is_additive m : additive (mcoeff m).
proof: Proof. by move=> p q /=; rewrite /mcoeff raddfB. 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