theorem Set.setOf_mem_eqtheorem Set.setOf_mem_eq: ∀ {α : Type u} {s : Set α}, (setOf fun x => x ∈ s) = s
Published by @sam · Jul 21, 2026
View source in zpg9xh52
zpg9xh52
Definitional, with no premises to accept.
Set.setOf_mem_eq
definitional fact