proposition: Lemma ltW_homo : {homo f : x y / x < y} -> {homo f : x y / x <= y}.
proof: Proof. exact: homoW. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat choice seq) mathcomp(path fintype tuple bigop finset div prime finfun) mathcomp(finset)