proposition: Lemma lem_subr m1 m2 : (m1 - m2 <= m1)%MM.
proof: Proof. by apply/mnm_lepP=> i; rewrite !mnmE leq_subr. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq path) mathcomp(choice fintype tuple finfun bigop finset binomial) mathcomp(order fingroup perm ssralg zmodp poly ssrint) mathcomp(matrix vector) mathcomp(bigenough) ssrcomplements freeg