Theorems · Theorem · general topology
EMetric.cauchy_iff
∀ {α : Type u} [inst : PseudoEMetricSpace α] {f : Filter α},
Cauchy f ↔ f ≠ ⊥ ∧ ∀ ε > 0, ∃ t ∈ f, ∀ x ∈ t, ∀ y ∈ t, edist x y < εε-δ characterization of Cauchy sequences on pseudoemetric spaces
- Defined in
- Mathlib.Topology.EMetricSpace.Basic
- Cited by
- 1 results in Mathlib
- Foundations
- Depth 147 from the axioms · uses propext, Classical.choice, Quot.sound
- Assumes
- PseudoEMetricSpace
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites10
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
- ENNRealstatement and proof · cited by 9,879
- Filterstatement and proof · cited by 8,121
- Bot.botstatement · cited by 4,720
- PseudoEMetricSpacestatement and proof · cited by 1,536
- EDist.ediststatement and proof · cited by 735
- Cauchystatement and proof · cited by 115
- Filter.neBot_iffproof · cited by 27
- uniformity_basis_edistproof · cited by 17
- Filter.HasBasis.cauchy_iffproof · cited by 3
Cited by1
Results whose statement or proof uses this declaration.
- BoundedVariationOn.exists_tendsto_left_of_filterproof · cited by 2