proposition: Lemma derive1Sn V (f : R -> V) n : f^`(n.+1) = f^`()^`(n).
proof: Proof. exact: iterSr. Qed.
imports: HB(structures) mathcomp(all_ssreflect ssralg ssrnum matrix interval) mathcomp(mathcomp_extra boolp classical_sets functions) reals signed topology prodnormedzmodule normedtype landau forms