proposition: Lemma C_infty_implies_D_infty : forall f, C_infty f -> D_infty f.
proof: Proof. intros f H n ; apply C_implies_D ; trivial. Qed.
imports: Rbase Ranalysis Lia Lra Rfunctions Rfunction_facts Rextensionality Rinterval Ranalysis_def Ranalysis_def_simpl Ranalysis_facts Ranalysis_continuity Ranalysis_derivability Ranalysis_monotonicity Rfunction_classes_def MyR_dist Reals.Tactics