theorem PiBase.Homeomorph.hasAnIsolatedPoint {X : Type u_1} {Y : Type u_2} [TopologicalSpace X] [TopologicalSpace Y] [h : HasAnIsolatedPoint X] (f : X ≃ₜ Y) : HasAnIsolatedPoint Y

theorem PiBase.WellDefined.hasAnIsolatedPoint : WellDefined HasAnIsolatedPoint