proposition: Lemma Fchar_sign : Fchar sign_char = 'he[rowpartn n].
proof: Proof. rewrite -(mulr1 sign_char) -omega_Fchar Fchar_triv omega_homsymh //. by apply: (leq_trans (leq_head_sumn _)); rewrite sumn_intpartn. Qed.
imports: HB(structures) mathcomp(all_ssreflect) mathcomp(fingroup perm morphism gproduct) mathcomp(rat ssralg ssrint ssrnum algC vector archimedean) mathcomp(mxrepresentation classfun character) mathcomp(mpoly) sorted ordtype tools partition antisym sympoly homogsym Cauchy Schur_altdef stdtab therule permcomp cycletype towerSn permcent reprSn unitriginv MurnaghanNakayama