proposition: Lemma norm_cvg_unique {F} {FF : ProperFilter F} : is_subset1 [set x : V | F --> x].
proof: Proof. exact: cvg_unique. 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