proposition: Fact omegahomsym_subproof p : is_homsym d (omegasf p).
proof: Proof. Proof using. by apply: omegasf_homog; rewrite -/(is_homsym _ _) -homsymE; case: 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