proposition: Lemma plusNonnegativeRationals_le_l : ∏ r q : NonnegativeRationals, r <= q + r.
proof: Proof. intros r q. rewrite iscomm_plusNonnegativeRationals. now apply plusNonnegativeRationals_le_r. 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