Theorems · Theorem · general topology
HasCompactMulSupport.continuous_extend_one
∀ {α' : Type u_3} {β : Type u_4} [inst : TopologicalSpace α'] [inst_1 : One β] [T2Space α']
[inst_3 : TopologicalSpace β] {U : Set α'},
IsOpen U → ∀ {f : ↑U → β}, Continuous f → HasCompactMulSupport f → Continuous (Function.extend Subtype.val f 1)- Defined in
- Mathlib.Topology.Algebra.Support
- Cited by
- 0 results in Mathlib
- Foundations
- Depth 80 from the axioms · uses propext, Classical.choice, Quot.sound
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Cites19
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.Elemstatement and proof · cited by 7,166
- Continuousstatement and proof · cited by 2,592
- IsOpenstatement and proof · cited by 2,400
- T2Spacestatement and proof · cited by 1,351
- ContinuousAtproof · cited by 697
- Continuous.continuousAtproof · cited by 297
- Subtype.val_injectiveproof · cited by 232
- continuous_subtype_valproof · cited by 159
- Function.extendstatement and proof · cited by 111
- HasCompactMulSupportstatement and proof · cited by 43
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