proposition: Lemma in_homsymE (p : HSF) : in_homsym p = p.
proof: Proof. by rewrite {2}(homsymmE p). 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