Theorems · Theorem · general topology
Topology.IsInducing.dense_iff
∀ {X : Type u_1} {Y : Type u_2} {f : X → Y} [inst : TopologicalSpace Y] [inst_1 : TopologicalSpace X],
Topology.IsInducing f → ∀ {s : Set X}, Dense s ↔ ∀ (x : X), f x ∈ closure (f '' s)- Defined in
- Mathlib.Topology.Maps.Basic
- Cited by
- 3 results in Mathlib
- Foundations
- Depth 71 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites7
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Setstatement and proof · cited by 53,352
- TopologicalSpacestatement and proof · cited by 24,529
- Set.imagestatement and proof · cited by 5,609
- closurestatement and proof · cited by 1,254
- Densestatement · cited by 359
- Topology.IsInducingstatement and proof · cited by 266
- Topology.IsInducing.closure_eq_preimage_closure_imageproof · cited by 11
Cited by3
Results whose statement or proof uses this declaration.
- TopologicalSpace.IsSeparable.separableSpaceproof · cited by 5
- Subtype.dense_iffproof · cited by 3
- IsOpenMap.separableSpace_of_isInducingproof · cited by 0