proposition: Lemma mesym1_set0 : mesym1 set0 = 0%MM.
proof: Proof. by apply/mnmP=> i; rewrite mnmE mnm0E in_set0. 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