proposition: Lemma leB0 n (p : BITS n) : leB #0 p.
proof: Proof. by rewrite leB_nat toNat_fromNat0. 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)