import data.num inductive one.{l} : Type.{l} := unit : one inductive pone : Type.{0} := unit : pone inductive two.{l} : Type.{l} := o : two, u : two inductive wrap.{l} : Type.{l} := mk : true → wrap inductive wrap2.{l} (A : Type.{l}) : Type.{l} := mk : A → wrap2 A set_option pp.universes true check @one.rec check @pone.rec check @two.rec check @wrap.rec check @wrap2.rec