 Finally, in the Analytic of Principles, Kant derives the synthetic judgments that “flow a priori from pure concepts of the understanding” and which ground all other a priori cognitions, including those of mathematics (A136/B175). The principles of pure understanding that are associated with the categories of quantity (i.e., unity, plurality and totality) are the Axioms of Intuition. Whereas mathematical principles proper are “drawn only from intuition” and so do not constitute any part of the system of principles of pure understanding, the explanation for the possibility of such mathematical principles (outlined above) must be supplemented by an account of the highest possible transcendental principles (A148–9/B188–9) (Shabel 2017). Accordingly, the Axioms of Intuition provide a meta-principle, or principle of the mathematical principles of quantity, namely that “All intuitions are extensive magnitudes” (A161/B202). Most commentators interpret Kant here to be indicating why the principles of mathematics, which have to do with pure space and time, are applicable to the appearances: the appearances can only be represented “through the same synthesis as that through which space and time in general are determined” (A161/B202). So, all intuitions, whether pure or empirical, are “extensive magnitudes” that are governed by the principles of mathematics. (For an alternative view of the Axioms, see Sutherland 2005b).