proposition: Lemma gt_pser_minus_compat : forall Un Vn x, gt_pser (Un - Vn) x == gt_pser Un x - gt_pser Vn x.
proof: Proof. intros Un Vn x n ; unfold gt_pser, Rseq_minus, Rminus, Rseq_plus, Rseq_mult ; ring. 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