Filter.mem_inf_principal

∀ {α : Type u} {f : Filter α} {s t : Set α}, s ∈ f ⊓ Filter.principal t ↔ {x | x ∈ t → x ∈ s} ∈ f

Defined in: Mathlib.Order.Filter.Basic
Cited by: 9 results in Mathlib
Foundations: Depth 65 from the axioms · uses propext, Classical.choice, Quot.sound

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