Lemma israpbinop_Dcuts_mult : israpbinop Dcuts_mult. Proof. intros x y y'. rewrite !(iscomm_Dcuts_mult x). now apply islapbinop_Dcuts_mult. Qed.
Require Import UniMath.MoreFoundations.Orders. Require Import UniMath.MoreFoundations.Tactics. Require Import UniMath.MoreFoundations.Notations. Require Import UniMath.RealNumbers.Sets. Require Import UniMath.OrderTheory.Lattice.Lattice. Require Import UniMath.RealNumbers.Prelim. Require Import UniMath.RealNumbers.NonnegativeRationals.