proposition: Lemma cvg_inNpoint {U} (T : filteredType U) (F : set_system U) : [lim F in T] != point -> [cvg F in T].
proof: Proof. by apply: contra_neqP; apply: dvg_inP. Qed.
imports: HB(structures) mathcomp(all_ssreflect all_algebra finmap generic_quotient) mathcomp(boolp classical_sets functions) mathcomp(cardinality mathcomp_extra fsbigop) reals signed