proposition: Lemma plusNonnegativeRationals_lecompat_r : ∏ r q n : NonnegativeRationals, (q <= n) <-> (q + r <= n + r).
proof: Proof. intros r q n. split. - now apply hqlehandplusr. - now apply hqlehandplusrinv. Qed.
imports: UniMath.MoreFoundations.Tactics UniMath.MoreFoundations.PartA UniMath.MoreFoundations.Sets UniMath.MoreFoundations.Orders UniMath.RealNumbers.Sets UniMath.RealNumbers.Fields UniMath.Algebra.DivisionRig UniMath.OrderTheory.Lattice.Lattice UniMath.RealNumbers.Prelim