proposition: Lemma gt_abs_pser_opp_compat : forall Un x, gt_abs_pser (- Un) x == gt_abs_pser Un x.
proof: Proof. intros Un x n ; unfold gt_abs_pser, Rseq_abs ; rewrite gt_pser_opp_compat ; unfold Rseq_opp ; apply Rabs_Ropp. 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