Theorems · Theorem · general topology
Dense.of_closure
∀ {X : Type u} [inst : TopologicalSpace X] {s : Set X}, Dense (closure s) → Dense sAlias of the forward direction of dense_closure.
The closure of a set s is dense if and only if s is dense.
- Defined in
- Mathlib.Topology.Closure
- Cited by
- 3 results in Mathlib
- Foundations
- Depth 68 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.
Cites5
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
- closurestatement · cited by 1,254
- Densestatement · cited by 359
- dense_closureproof · cited by 2
Cited by3
Results whose statement or proof uses this declaration.
- DenseRange.dense_imageproof · cited by 10
- UniqueDiffWithinAt.univ_piproof · cited by 2
- Metric.separableSpaceInductiveLimit_of_separableSpaceproof · cited by 0