Abstract

This paper outlines a heuristic approach to Kant’s philosophy as a whole, attributing to him the special brand of rationalism that began with Descartes’s and Leibniz’s theories of human problemsolving, and which lives on, for instance, in Carnap’s theory of the logical construction of the world. The paper begins with a reconstruction of Kant’s account of pure reason as a general device inherent to human nature, which carries with it unavoidable tasks brought about by inborn a priori principles leading to unavoidable or necessary problems. The paper then presents the necessary problems of pure reason according to their classification, hierarchy, mode of generation, their division into solvable or unsolvable, and the solution methods they require. Some additional comments are offered on the claim that the human problem-solving capacity should be cultivated as a duty of virtue. The paper also comments on the fact that over time Kant expanded his list of problems, and most likely did not think that he had exhausted the matter. Finally, Kant’s solutions to the necessary problems of pure reason are reviewed, and it is shown that his system of pure reason, which comprises various a priori doctrines developed successively, can be seen as the totality of those solutions organized and unified according to the order of the problems which itself was constituted as the critical work progressed