proposition: Lemma amull1 : amull 1 = \1%VF.
proof: Proof. by apply/lfunP => z; rewrite id_lfunE lfunE /= mul1r. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq path) mathcomp(choice fintype div tuple finfun bigop ssralg) mathcomp(finalg zmodp matrix vector poly)