 For Kant the mind is essentially active and vital—“the mind (Gemüt) for itself is entirely life (the principle of life itself)” (5: 278)—and a cognitive capacity in turn is a determinate conscious propensity of the mind to generate objective representations of certain kinds under certain conditions. What do spontaneity and innateness add to a mere capacity for cognition, so that it becomes a “faculty of cognition” (Erkenntnisvermögen)? A cognitive faculty is spontaneous in that whenever it is externally stimulated by raw unstructured sensory data as inputs, it then automatically organizes or “synthesizes” those data in an unprecedented way relative to those inputs, thereby yielding novel structured cognitions as outputs (B1–2, A50/B74, B132, B152). So cognitive spontaneity is a structural creativity of the mind with respect to its representations. It is a controverted question of recent Kant-interpretation whether cognitive spontaneity derives exclusively from the conceptual or discursive capacity of the rational human mind (B152) (Longuenesse 1998, chs. 1–3, 5, 8), or can also derive independently from the intuitional, non-conceptual, or sensible capacity of the rational human mind, shared with minded non-rational human or non-human animals (B151) (Hanna 2006b, ch. 1, McLear 2011). Correspondingly, it is also a controverted question whether according to Kant there is only one basic kind of synthesis, i.e., conceptual/discursive synthesis, or two basic kinds, i.e., conceptual/discursive synthesis and intuitional/non-conceptual/sensible synthesis. These controverted questions, in turn, are closely connected with the recent vigorous debate about Kant’s conceptualism vs. Kant’s non-conceptualism in relation to his theory of judgment, and the implications of this for interpreting and critically evaluating Kant’s transcendental idealism and the Transcendental Deduction of the Pure Concepts of the Understanding, a.k.a. “the Categories” (see the supplementary document  The Togetherness Principle, Kant’s Conceptualism, and Kant’s Non-Conceptualism  and Sections 4.1 to 4.2 below). 