proposition: Lemma QabsQpos_Qpos (x : Qpos) : QposEq (QabsQpos x) x.
proof: Proof. Proof with auto with qarith. unfold QposEq. rewrite QabsQpos_correct... apply Qabs_pos... 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