Theorems · Theorem · general topology

OpenPartialHomeomorph.IsImage.frontier

∀ {X : Type u_1} {Y : Type u_3} [inst : TopologicalSpace X] [inst_1 : TopologicalSpace Y]
  {e : OpenPartialHomeomorph X Y} {s : Set X} {t : Set Y}, e.IsImage s t → e.IsImage (frontier s) (frontier t)

Defined in

Mathlib.Topology.OpenPartialHomeomorph.IsImage

Cited by

3 results in Mathlib

Foundations

Depth 78 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

TopologicalSpaceTopologicalSpace