fact: Hypotheses (Hla : is_part_of_n d la) (Hlla : is_part_of_n (l0 + d)%N (l0 :: la)).
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