Theorems · Theorem · general topology
CauchySeq.mem_entourage
∀ {α : Type u} [uniformSpace : UniformSpace α] {β : Type u_1} [inst : SemilatticeSup β] {u : β → α},
CauchySeq u → ∀ {V : SetRel α α}, V ∈ uniformity α → ∃ k₀, ∀ (i j : β), k₀ ≤ i → k₀ ≤ j → (u i, u j) ∈ V- Defined in
- Mathlib.Topology.UniformSpace.Cauchy
- Cited by
- 1 results in Mathlib
- Foundations
- Depth 69 from the axioms · uses propext, Classical.choice, Quot.sound
- Assumes
- UniformSpaceSemilatticeSup
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites14
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Filterstatement and proof · cited by 8,121
- Filter.Tendstoproof · cited by 3,814
- Filter.atTopproof · cited by 2,405
- UniformSpacestatement and proof · cited by 2,040
- SemilatticeSupstatement and proof · cited by 785
- uniformitystatement and proof · cited by 765
- SetRelstatement and proof · cited by 581
- CauchySeqstatement and proof · cited by 131
- Filter.atTop_basisproof · cited by 42
- Filter.prod_atTop_atTop_eqproof · cited by 20
- Filter.HasBasis.prod_selfproof · cited by 19
- Filter.HasBasis.tendsto_left_iffproof · cited by 9
Cited by1
Results whose statement or proof uses this declaration.
- IsSeqCompact.totallyBoundedproof · cited by 1