fact: Definition mpart (s : seq nat) := if size s <= n then [multinom (nth 0 s i)%N | i < n] else mnm0.
imports: HB(structures) mathcomp(all_ssreflect) mathcomp(ssralg ssrint fingroup perm zmodp binomial) mathcomp(ssrcomplements freeg mpoly) tools permcomp presentSn sorted partition