Theorems · Theorem · general topology
Filter.eq_principal_of_finite
∀ {α : Type u} [Finite α] (f : Filter α), ∃ s, f = Filter.principal sAny filter on a finite type is principal.
- Defined in
- Mathlib.Order.Filter.Finite
- Cited by
- 1 results in Mathlib
- Foundations
- Depth 71 from the axioms · uses propext, Classical.choice, Quot.sound
- Assumes
- Finite
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 · cited by 53,352
- Filterstatement and proof · cited by 8,121
- Finitestatement and proof · cited by 3,029
- Filter.principalstatement · cited by 740
- Set.Finite.subsetproof · cited by 285
- Filter.setsproof · cited by 56
- Set.finite_univproof · cited by 52
- Set.Finite.powersetproof · cited by 5
- Set.powerset_univproof · cited by 4
- Filter.eq_principal_of_finite_setsproof · cited by 1
Cited by1
Results whose statement or proof uses this declaration.
- Filter.principal_surjectiveproof · cited by 0