proposition: Lemma and0B n : left_zero #0 (andB (n:=n)).
proof: Proof. by rewrite fromNat0; apply lift_left_zero; do !elim. 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