proposition: Lemma syms_rowpartn d : 's[rowpartn d] = 'h_d.
proof: Proof. by apply val_inj; rewrite /= /symh_pol /symh_pol_bound Schur_rowpartn. Qed.
imports: HB(structures) mathcomp(all_ssreflect) mathcomp(ssralg ssrint fingroup perm) mathcomp(ssrcomplements freeg mpoly) sorted tools ordtype permuted partition skewpart composition Yamanouchi std tableau stdtab skewtab permcent antisym Schur_mpoly therule Schur_altdef unitriginv