proposition: Lemma __deprecated__invr_cvg_pinfty (R : realFieldType) (u : R^nat) : (forall i, 0 < u i) -> ((u i)^-1 @[i --> \oo] --> +oo) <-> (u @ \oo--> 0).
proof: Proof. by move=> ?; rewrite cvgrVy//; apply: nearW. 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