Note 2 — I PRELIMINARY OBSERVATIONS

The fundamental question of Kant’s Theory of Knowledge is, How are synthetic judgments a priori possible? Let us consider this question for a moment in respect of its freedom from presuppositions. Kant asks the question precisely because he believes that we can attain unconditionally certain knowledge only if we are able to prove the validity of synthetic judgments a priori. He says: “Should this question be answered in a satisfactory way, we shall at the same time learn what part reason plays in the foundation and completion of those sciences which contain a theoretical a priori knowledge of objects;”2 and, further, “Metaphysics stands and falls with the solution of this problem, on which, therefore, the very existence of Metaphysics absolutely depends.”3