proposition: Fact evalXY_is_multiplicative : multiplicative evalXY.
proof: Proof. by rewrite /evalXY; split=> [p q|]; rewrite /= ?rmorphM ?rmorph1. Qed.
imports: HB(structures) mathcomp(all_ssreflect) mathcomp(ssrint rat ssralg ssrnum algC matrix vector) mathcomp(mpoly) tools partition ordtype antisym Schur_mpoly Schur_altdef sympoly homogsym permcent