fact: Definition is_filter_lim {T : TopologicalSpace} (F : Filter T) (x : T) := filter_le F (locally x).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.Topology.Filters UniMath.Algebra.Groups UniMath.Algebra.DivisionRig UniMath.Algebra.ConstructiveStructures