 In §20, Kant ties this notion of judgment to the twelve forms of judgment presented in the Metaphysical Deduction (A70/B95), and he then connects these forms of judgment to the twelve categories (A76–83/B102–9). The claim has often been made that the links Kant specifies between synthesis and judgment, judgment and the forms of judgment, the forms of judgment and the categories are not sufficiently supported. Guyer, for example, argues that Kant has not adequately established the last of these connections, that although Kant claims that the categories are simply the forms of judgment as they are employed in the synthesis of representations in an intuition (A79/B104–A80/B105, B143), he has failed to make this claim plausible (Guyer 1987: 94–102). It is fair to say that these concerns have merit. Kant’s assertions about these ties remain more obscure than the preceding part of the Transcendental Deduction, and it continues to be a serious challenge for interpreters to clarify and vindicate them.