proposition: Lemma Dcuts_minus_correct_r: ∏ x y z : Dcuts, x = Dcuts_plus y z -> y = Dcuts_minus x z.
proof: Proof. intros x y z Hx. apply Dcuts_minus_correct_l. rewrite Hx. now apply iscomm_Dcuts_plus. Qed.
imports: UniMath.MoreFoundations.Orders UniMath.MoreFoundations.Tactics UniMath.MoreFoundations.Notations UniMath.RealNumbers.Sets UniMath.Algebra.ConstructiveStructures UniMath.OrderTheory.Lattice.Lattice UniMath.RealNumbers.Prelim UniMath.RealNumbers.NonnegativeRationals