Lemma ispositive_divNonnegativeRationals : ∏ x y, 0 < x -> 0 < y -> 0 < x / y. Proof. intros x y Hx Hy. apply ispositive_multNonnegativeRationals. - exact Hx. - apply ispositive_invNonnegativeRationals. exact Hy. Qed.
Require Import UniMath.MoreFoundations.Tactics. Require Import UniMath.MoreFoundations.PartA. Require Import UniMath.MoreFoundations.Sets. Require Import UniMath.MoreFoundations.Orders. Require Import UniMath.RealNumbers.Sets. Require Import UniMath.RealNumbers.Fields. Require Import UniMath.OrderTheory.Lattice.Lattice. Require Import UniMath.RealNumbers.Prelim.