proposition: Lemma limV f : lim (f @ F) != 0 -> lim (f\^-1 @ F) = (lim (f @ F))^-1.
proof: Proof. by move=> ?; apply: cvg_lim => //; apply: cvgV => //; apply: cvgNpoint. Qed.
imports: HB(structures) mathcomp(all_ssreflect ssralg ssrint ssrnum finmap matrix) mathcomp(rat interval zmodp vector fieldext falgebra) mathcomp(mathcomp_extra boolp classical_sets functions) mathcomp(cardinality set_interval Rstruct) ereal reals signed topology prodnormedzmodule