proposition: Lemma polyOverSv U V : (U <= V)%VS -> {subset polyOver U <= polyOver V}.
proof: Proof. by move/subvP=> sUV; apply: polyOverS. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq div) mathcomp(choice fintype tuple finfun bigop ssralg countalg) mathcomp(finalg zmodp matrix vector falgebra poly polydiv) mathcomp(mxpoly generic_quotient)