proposition: Lemma normed_series_exp_coeff x : [normed series (exp x)] = series (exp `|x|).
proof: Proof. rewrite funeqE => n /=; apply: eq_bigr => k _. by rewrite /exp normrM normfV normrX [`|_%:R|]@ger0_norm. Qed.
imports: mathcomp(all_ssreflect ssralg ssrint ssrnum matrix) mathcomp(interval rat) mathcomp(mathcomp_extra boolp classical_sets functions) mathcomp(set_interval) reals ereal signed topology normedtype landau