proposition: Lemma mpolyOverXaddC m c : ('X_[m] + c%:MP \in mpolyOver S) = (c \in S).
proof: Proof. by rewrite rpredDl ?mpolyOverX ?mpolyOverC. 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