proposition: Lemma homsymdotMnl p q n : '[q *+ n | p] = '[q | p] *+ n.
proof: Proof. by rewrite -!homsymdotrE linearMn. Qed.
imports: HB(structures) mathcomp(all_ssreflect) mathcomp(ssralg matrix vector ssrnum algC archimedean) mathcomp(fingroup perm) mathcomp(ssrcomplements freeg mpoly) tools sorted ordtype permuted partition permcent antisym Schur_mpoly Schur_altdef sympoly