Konstantin Pollok

An Almost Single Inference: Kant's Deduction of the Categories Reconsidered

Abstract By taking into account some texts published between the first and the second edition of the Critique of Pure Reason that have been neglected by most of those who have dealt with the deduction of the categories, I argue that the core of the deduction is to be identified as the ‘almost single inference from the precisely determined definition of a judgment in general’, which Kant adumbrates in the Metaphysical Foundations in order to ‘make up for the deficiency’ of the A-deduction. Whereas the first step of the B-deduction is an attempt to show that the manifold of an intuition belongs to the ‘necessary unity of self-consciousness’ by means of the synthesis of the understanding, the second step has the task of showing that the very same synthesis is responsible for the spatio-temporal unity of the manifold. Thus, Kants ‘answer to Hume’ is that no spatio-temporal objects of experience at all are merely ‘given’, independently of the conceptual activities of the understanding. Against the established view I substantiate the claim that with this ‘almost single inference’ of the second proof step the distinction between judgments of perception and judgments of experience consequently vanished from Kants thinking.

Wenn Vernunft volle Gewalt über das Begehrungsvermögen hätte: Über die gemeinsame Wurzel der Kantischen Imperative

Abstract I. Kant hat mit seiner universalistischen, formalistischen und kognitivistischen Konzeption moralisch-praktischer Gründe in Gegenüberstellung zu seiner instrumentalistischen Konzeption nicht-moralisch-praktischer Gründe eine Begrifflichkeit geschaffen, die es erlaubt, handlungsleitende Überzeugungen hinsichtlich ihres Geltungsanspruchs und ihrer Verbindlichkeit zu differenzieren. Von einem ‚Sollen‘ spricht Kant in beiden Fällen. Nicht nur der kategorische Imperativ, der unbedingt gebietet, „ich soll niemals anders verfahren als so, daß ich auch wollen könne, meine Maxime solle ein allgemeines Gesetz werden“ (GMS, AA 04: 402), sondern auch hypothetische Imperative, die bedingt gebieten, „ich soll etwas thun, darum weil ich etwas anderes will“, nehmen bei Kant die normative Form eines ‚Sollens‘ an. In beiden Fällen ergehen also Forderungen an die Vernunft, doch es ist alles andere als klar, in welcher Beziehung diese Sollensformen zueinander stehen. Bestünde gar keine solche Beziehung, so träte praktische Vernunft im Plural auf – wohlgemerkt in einer einzigen Person, welcher sich der Sinn beider Imperativformen erschlossen hat. Da eine solche Form von Schizophrenie der Willensbestimmung nicht der Kantischen Vorstellung von praktischer Vernunft entspricht, stellt sich die Frage nach der Einheit von bedingtem und unbedingtem Sollen.

‘The understanding prescribes laws to nature’: Spontaneity, Legislation, and Kant’s Transcendental Hylomorphism

Abstract: In this paper I argue for the following two related claims. First, a successor version of the scholastic ‘forma-non-afficit’ theorem functions as the key to Kant’s transcendental idealism. Second, drawing on the ‘natural right’ tradition which Kant sees himself being part of, the relation between our cognitive spontaneity and the legislation of the understanding is one of acknowledgment (rather than creation) of the laws of the understanding. This interpretation allows us to make sense of pure concepts and principles of the understanding as the fundamental laws of nature. They rationally constrain our empirical concepts and judgments, and thus warrant the ‘lawfulness in the connection of appearances.’ (Prol, AA 04:§ 36)

From the clarity of ideas to the validity of judgments: Kant's farewell to epistemic perfectionism

Against the standard interpretation of Kants ‘Copernican revolution’ as the prioritization of epistemology over ontology, I argue in this paper that his critique of traditional metaphysics must be seen as a farewell to the perfectionism on which early modern rationalist ontology and epistemology are built. However, Kant does not simply replace ‘perfection’ with another fundamental concept of normativity. More radically, Kant realizes that it is not simply ideas but only the relation of ideas that can be subject to norms, and thus he shifts the focus from the reality of ideas to the validity of judgments. Section 1 of this paper clarifies the pre-Kantian role of the concept of perfection and examines Kants critical response to that concept. Section 2 identifies Kants point of departure from the Cartesian ‘way of ideas.’ Section 3 explains the key problem of his novel account of epistemic normativity. I conclude that Kants anti-perfectionism must be seen as the driving force behind his ‘Copernican revolution’ in order to fully appreciate his mature account of epistemic normativity.