1/2: Building Stuff (Stuff.idr)
2/2: Building IFace (IFace.idr)
IFace> True
IFace> False
IFace> Bye for now!
2/2: Building IFace1 (IFace1.idr)
IFace1>  0 a : Type
 0 p : a -> Type
   l : a
   r' : p l
   r : p l
   l' : a
------------------------------
foo : Bool
IFace1> Bye for now!