Theorems · Theorem · general topology
locallyPathConnectedSpace_iff_isOpen_pathComponentIn
∀ {X : Type u_4} [inst : TopologicalSpace X],
LocallyPathConnectedSpace X ↔ ∀ (x : X) (u : Set X), IsOpen u → IsOpen (pathComponentIn u x)A space is locally path-connected iff all path components of open subsets are open.
- Cited by
- 3 results in Mathlib
- Foundations
- Depth 130 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.
- Setstatement and proof · cited by 53,352
- TopologicalSpacestatement and proof · cited by 24,529
- nhdsproof · cited by 5,554
- LE.le.transproof · cited by 3,151
- IsOpenstatement and proof · cited by 2,400
- IsOpen.mem_nhdsproof · cited by 470
- Filter.mem_of_supersetproof · cited by 308
- mem_nhds_iffproof · cited by 67
- IsPathConnectedproof · cited by 65
- LocallyPathConnectedSpacestatement and proof · cited by 53
- pathComponentInstatement and proof · cited by 19
- mem_pathComponentIn_selfproof · cited by 7
Cited by3
Results whose statement or proof uses this declaration.
- LocallyPathConnectedSpace.coinducedproof · cited by 2
- locallyPathConnectedSpace_iff_pathComponentIn_mem_nhdsproof · cited by 1
- locPathConnectedSpace_iff_isOpen_pathComponentInproof · cited by 0