  Thus, in Kant’s thought about the mind early in CPR, there is not one central movement but two, one in the Transcendental Aesthetic and the other in the Metaphysical Deduction. The first is a move up from experience (of objects) to the necessary conditions of such experience. The second is a move down from the Aristotelian functions of judgment to the concepts that we have to use in judging, namely, the Categories. One is inference up from experience, the other deduction down from conceptual structures of the most abstract kind.