proposition: Fact co_hp_is_scalar la : scalar (co_hp la).
proof: Proof. rewrite /co_hp => /= r p q. by rewrite /= linearD linearZ homsymdotDl homsymdotZl /=. 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