Theorems · Theorem · general topology
IsCompact.tendsto_subseq
∀ {X : Type u_1} [inst : TopologicalSpace X] [FirstCountableTopology X] {s : Set X} {x : ℕ → X},
IsCompact s → (∀ (n : ℕ), x n ∈ s) → ∃ a ∈ s, ∃ φ, StrictMono φ ∧ Filter.Tendsto (x ∘ φ) Filter.atTop (nhds a)- Defined in
- Mathlib.Topology.Sequences
- Cited by
- 4 results in Mathlib
- Foundations
- Depth 88 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites9
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
- nhdsstatement · cited by 5,554
- Filter.Tendstostatement · cited by 3,814
- Filter.atTopstatement · cited by 2,405
- IsCompactstatement and proof · cited by 1,282
- StrictMonostatement · cited by 706
- FirstCountableTopologystatement and proof · cited by 106
- IsCompact.isSeqCompactproof · cited by 6
Cited by4
Results whose statement or proof uses this declaration.
- Besicovitch.exists_goodδproof · cited by 3
- IsCompactOperator.hasEigenvalue_or_mem_resolventSetproof · cited by 1
- IsCompactOperator.antilipschitz_of_not_hasEigenvalueproof · cited by 1
- tangentConeAt_nonempty_of_properSpaceproof · cited by 0