proposition: Lemma cm1 i : (1%M : cmonom I) i = 0%N.
proof: Proof. exact/onecmE. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat) mathcomp(seq path choice finset fintype finfun) mathcomp(tuple bigop ssralg ssrint ssrnum) xfinmap