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