(* The foo is generated by arbitrary *)
(* begin good_foo_combo *)
Inductive goodFooCombo : nat -> Foo -> Prop :=
| GoodCombo : forall n foo, goodFooCombo n (Foo2 foo).(* The foo is generated by arbitrary *)
(* begin good_foo_combo *)
Inductive goodFooCombo : nat -> Foo -> Prop :=
| GoodCombo : forall n foo, goodFooCombo n (Foo2 foo).

Lemma genGoodCombo_equality n : genGoodCombo n = @arbitrarySizeST _ (fun foo => goodFooCombo n foo) _.