proposition: Lemma infinite_cv_radius_ext : infinite_cv_radius An <-> infinite_cv_radius Bn.
proof: Proof. split ; intros rho r ; [rewrite <- Cv_radius_weak_ext | rewrite Cv_radius_weak_ext] ; trivial. Qed.
imports: Reals Rpser_def Rpser_def_simpl Rinterval Rsequence_def Rsequence_base_facts Rsequence_subsequence Rsequence_rewrite_facts Rsequence_cv_facts Rsequence_facts Rsequence_bound_facts Rsequence_sums_facts Rpow_facts PeanoNat Lra MyRIneq MyNat MyNNR