proposition: Lemma n_Function_ball01_sym : forall n e f g, (n_Function_ball01 n e f g) -> (n_Function_ball01 n e g f).
proof: Proof. induction n. apply ball_sym. intros e f g H x Hx0 Hx1. apply IHn. apply H; auto. Qed.
imports: CoRN.algebra.RSetoid CoRN.metric2.Metric CoRN.metric2.UniformContinuity CoRN.algebra.Bernstein CoRN.algebra.CRing_Homomorphisms CoRN.algebra.COrdFields2 CoRN.model.ordfields.Qordfield CoRN.model.totalorder.QMinMax CoRN.tactics.CornTac CoRN.tactics.Qauto CoRN.model.metric2.Qmetric Coq.QArith.Qabs CoRN.reals.fast.CRabs CoRN.reals.fast.ModulusDerivative CoRN.reals.fast.CRArith CoRN.reals.fast.CRArith_alg CoRN.algebra.RSetoid