fact: Definition ex_lim {X : UU} {T : TopologicalSpace} (f : X → T) (F : Filter X) := ∃ (x : T), is_lim f F x.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.Topology.Filters UniMath.Algebra.Groups UniMath.Algebra.DivisionRig UniMath.Algebra.ConstructiveStructures