proposition: Lemma homsymdotZl p a q : '[a *: q | p] = a * '[q | p].
proof: Proof. by rewrite -!homsymdotrE linearZ. 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