proposition: Lemma limf_einfN f F : limf_einf (\- f) F = - limf_esup f F.
proof: Proof. by rewrite /limf_einf; under eq_fun do rewrite oppeK. 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