Theorems · Theorem · general topology

ContinuousWithinAt.mono_of_mem_nhdsWithin

∀ {α : Type u_1} {β : Type u_2} [inst : TopologicalSpace α] [inst_1 : TopologicalSpace β] {f : α → β} {s t : Set α}
  {x : α}, ContinuousWithinAt f t x → t ∈ nhdsWithin x s → ContinuousWithinAt f s x

Defined in

Mathlib.Topology.ContinuousOn

Cited by

7 results in Mathlib

Foundations

Depth 71 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

TopologicalSpaceTopologicalSpace