proposition: Fact omegasf_is_linear : linear omegasf.
proof: Proof. rewrite /omegasf => r /= u v. by apply val_inj; rewrite /= !linearP /=. 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