proposition: Lemma Qpos_nonneg : forall a:Qpos, 0 <= a.
proof: Proof. intros [??]. auto with *. Qed.
imports: Coq.QArith.QArith Coq.QArith.Qpower CoRN.model.ordfields.Qordfield CoRN.algebra.COrdFields2 Coq.Logic.Eqdep_dec CoRN.tactics.CornTac Coq.QArith.Qround Coq.QArith.Qabs CoRN.stdlib_omissions.Q