proposition: Lemma abstrX_mulM (i : nat) : {morph abstrX i : x y / x * y >-> mulpT x y}%T.
proof: Proof. by []. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype choice ssrnat seq) mathcomp(fintype generic_quotient bigop ssralg poly) mathcomp(polydiv matrix mxpoly countalg ring_quotient)