{x : ℕ ∈ S | x > 0} : set ℕ
{x : ℕ ∈ s | x > 0} : finset ℕ
@set.sep.{1} nat (λ (x : nat), nat.gt x (nat.of_num 0)) S : set.{1} nat
@finset.sep.{1} nat (λ (a b : nat), nat.has_decidable_eq a b) (λ (x : nat), nat.gt x (nat.of_num 0))
  (λ (a : nat), nat.decidable_ge a (nat.succ (nat.of_num 0)))
  s :
  finset.{1} nat