proposition: Lemma onecmE i : onecm i = 0%N.
proof: Proof. by rewrite cmE fsfun_ffun insubF. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat) mathcomp(seq path choice finset fintype finfun) mathcomp(tuple bigop ssralg ssrint ssrnum) xfinmap