Theorems · Theorem · general topology
totallyDisconnectedSpace_iff_connectedComponent_subsingleton
∀ {α : Type u} [inst : TopologicalSpace α], TotallyDisconnectedSpace α ↔ ∀ (x : α), (connectedComponent x).SubsingletonA space is totally disconnected iff its connected components are subsingletons.
- Cited by
- 1 results in Mathlib
- Foundations
- Depth 63 from the axioms · uses propext, Classical.choice, Quot.sound
- Assumes
- TopologicalSpace
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites15
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Setproof · cited by 53,352
- TopologicalSpacestatement and proof · cited by 24,529
- Set.univproof · cited by 3,945
- Set.Nonemptyproof · cited by 2,627
- TotallyDisconnectedSpacestatement and proof · cited by 295
- Set.Subsingletonstatement and proof · cited by 276
- Set.eq_empty_or_nonemptyproof · cited by 248
- Set.subset_univproof · cited by 228
- IsPreconnectedproof · cited by 205
- connectedComponentstatement and proof · cited by 68
- Set.subsingleton_emptyproof · cited by 16
- Set.Subsingleton.antiproof · cited by 13
Cited by1
Results whose statement or proof uses this declaration.
- totallyDisconnectedSpace_iff_connectedComponent_singletonproof · cited by 4