proposition: Lemma Dcuts_plus_le_l : ∏ x y, x <= Dcuts_plus x y.
proof: Proof. intros x y r Xr. now apply hinhpr ; left ; left. 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