Kant and the Possibility of Uncategorized Experience
Clark University Press
Without any doubt, the Transcendental Deduction is the very center of the Critique of Pure Reason. There Kant tells us that the categories of the understanding "underlie all empirical knowledge as its a priori conditions. The objective validity of the categories as a priori concepts rests, therefore, on the fact that, so far as the form of thought is concerned, through them alone does experience become possible" (B 126-A94).1
Kain, P. J. "Kant and the Possibility of Uncategorized Experience," Idealistic Studies, 19 (1989): 154-73.