proposition: Lemma mpolyCM : {morph @malgC K R : p q / p * q}.
proof: Proof. exact: rmorphM. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat) mathcomp(seq path choice finset fintype finfun) mathcomp(tuple bigop ssralg ssrint ssrnum) xfinmap