proposition: Lemma boolnegtrueimplfalse ( v : bool ) ( p : neg ( v = true ) ) : v = false.
proof: Proof. intros. destruct v. - apply fromempty. apply p; auto. - auto. Defined.
imports: UniMath.Tactics.EnsureStructuredProofs UniMath.Foundations.PartA UniMath.Foundations.Propositions UniMath.Foundations.NaturalNumbers UniMath.Algebra.RigsAndRings UniMath.Algebra.Domains_and_Fields UniMath.NumberSystems.Integers UniMath.Algebra.Monoids