Mathlib Map

Theorems · Inductive type · general topology

Filter.IsBasis

{α : Type u_1} → {ι : Sort u_4} → (ι → Prop) → (ι → Set α) → Prop

IsBasis p s means the image of s bounded by p is a filter basis.

Defined in
Mathlib.Order.Filter.Bases.Basic
Cited by
14 results in Mathlib
Foundations
Depth 1 from the axioms · uses no axioms

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Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.

  • Setstatement · cited by 53,352

Cited by22

Results whose statement or proof uses this declaration.