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Theorems · Theorem · logic and foundations

Set.mem_ofPred_eq

∀ {α : Type u} {x : α} {p : α → Prop}, (x ∈ {y | p y}) = p x
Defined in
Mathlib.Data.Set.Operations
Cited by
122 results in Mathlib
Foundations
Depth 4 from the axioms, rests on 9 definitions · uses no axioms

Around this declaration

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Cites2

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

  • Setstatement · cited by 53,352
  • Set.ofPredstatement · cited by 6,101

Cited by122

Results whose statement or proof uses this declaration.