proposition: Lemma leB_refl n (p : BITS n) : leB p p.
proof: Proof. by rewrite /leB eq_refl orbT. Qed.
imports: HB(structures) mathcomp.ssreflect.ssreflect mathcomp(ssrfun ssrbool eqtype ssrnat seq fintype tuple zmodp div) ssrextra.tuple ssrextra.nat spec spec.properties operations mathcomp(ssralg)