Definition Dcuts_mult_val : hsubtype NonnegativeRationals := λ r, ∃ xy : NonnegativeRationals × NonnegativeRationals, r = (pr1 xy * pr2 xy)%NRat × X (pr1 xy) × Y (pr2 xy).
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.