I A Now the philosophy of pure reason is either propaedeutic (preparation), which investigates the faculty of reason in regard to all pure a priori cognition, and is called critique, or, second, the system of pure reason (science), the whole (true as well as apparent) philosophical cognition from pure reason in systematic interconnection, and is called metaphysics; this name can also be given to all of pure philosophy including the critique, in order to comprehend the investigation of every thing that can ever be cognized a priori as well as the presentation of that which constitutes a system of pure philosophical cognitions of this kind, but in distinction from all empirical as well as mathematical use of reason.