On Kant’s Derivation of the Categories

In this paper, I put forth a novel interpretation of how the third categories under each heading in the table of categories are derived. Drawing on a passage from the first Critique and a letter to Schultz, I argue that in order to derive these categories, a special act of the understanding is required. I propose that we interpret this special act as consisting of an application of the third logical function under the corresponding heading that unites the combination of the first and second categories so as to produce the third.