proposition: Lemma genmx0 m n : <<0 : 'M_(m, n)>>%MS = 0.
proof: Proof. by apply/eqP; rewrite -submx0 genmxE sub0mx. 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)