To many contemporary philosophers of science, the philosophy of Immanuel Kant is a necessary starting point. His thesis on epistemology is a sure reference for modern minds of the likes of Hans Reichenbach, T.S. Kuhn, Karl Popper and D. Shapere. This should not be a matter for disputation, more so when it is recognized that the fertile mind of Kant traversed the vast field of intellectual reconstruction of his day. Thus, it is just a normal reference point for whoever is interested in the philosophy of science. And many really drank from the Kantian resource fountain. As the German scholar, W. K. Essler, puts it: within the foundation upon which his metaphysics is established, Kant was able to answer ‘how synthetic a priori judgments are possible’.[1]From the major question discussed in Kant’s Critique of Pure Reason,two hypotheses are established.
