proposition: Lemma iscotrans_CCDRap : ∏ x y z : X, x ≠ z -> x ≠ y ∨ y ≠ z.
proof: Proof. exact (iscotrans_CDRap (X := ConstructiveCommutativeDivisionRig_ConstructiveDivisionRig X)). Qed.
imports: UniMath.Algebra.DivisionRig UniMath.Algebra.Domains_and_Fields UniMath.Algebra.Apartness UniMath.MoreFoundations.Tactics