proposition: Fact co_hp_is_additive la : additive (co_hp la).
proof: Proof. by rewrite /co_hp => p q; rewrite raddfB. 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