proposition: Lemma ltmxE : (A < B)%MS = ((A <= B)%MS && ~~ (B <= A)%MS).
proof: Proof. by []. Qed.
imports: HB(structures) mathcomp(ssreflect ssrbool ssrfun eqtype ssrnat seq choice) mathcomp(fintype finfun bigop finset fingroup perm order) mathcomp(div prime binomial ssralg finalg zmodp matrix)