proposition: Lemma israpbinop_Dcuts_plus : israpbinop Dcuts_plus.
proof: Proof. intros x y y'. rewrite !(iscomm_Dcuts_plus x). now apply islapbinop_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