Consider the laws of nature—the laws of physics, for example. One familiar philosophical question about laws is this: what is it to be a law of nature? More specifically, is a law of nature a regularity, or a generalization stating a regularity? Or is it something else? Another philosophical question is: how, and to what extent, can we have knowledge of the laws of nature? I am interested here in Kant's answers to these questions, and their place within his broader (...) theoretical philosophy during the period spanning from the first to the third Critique. (shrink)

It is not just rationalist metaphysics, but also Kant’s transcendental philosophy that is teeming with a priori concepts. According to Kant, some of these a priori concepts are “ideas,” and similar to the categories, some of these ideas in turn belong to the nature of human reason, while others can be derived from them. It is therefore part of Kant’s claim in the “Transcendental Dialectic” to be able to explain not only the leading ideas of rational psychology, cosmology, and theology (...) as natural concepts of reason, but the origin of the entire a priori vocabulary of the metaphysica specialis as well. This article outlines how Kant’s derivations of these concepts work. After explaining Kant’s classification of a priori concepts and the derivation of the transcendental ideas, his derivations are explored in more detail using the example of the concepts of the pure doctrine of the soul. This contributes to a better understanding of Kant’s theory of philosophical concepts while also shedding light on the rather rarely treated topic of the “Transcendental Dialectic.”. (shrink)