Kant's reasoning in his special metaphysics of nature is often opaque, and the character of his a priori foundation for Newtonian science is the subject of some controversy. Recent literature on the Metaphysical Foundations of Natural Science has fallen well short of consensus on the aims and reasoning in the work. Various of the doctrines and even the character of the reasoning in the Metaphysical Foundations have been taken to present insuperable obstacles to accepting Kant's claim to ground Newtonian science. (...) Gordon Brittan and Gerd Buchdahl, amongst others, have argued that Kant's stated aims in this case are not to be taken at face value, and that prior ontological commitments play a hidden but central role in Kant's special metaphysics. ;Michael Friedman has shown how Kant's stated aims can be taken seriously with his ingenious reconstruction of the Metaphysical Foundations as a demonstration of the a priori basis for our thinking bodies to be in true motion and in absolute space. However, Friedman does not address the issue of matter theory--despite the importance of the issue to Kant. I argue that a strict reading of both the stated aims and doctrines of the Metaphysical Foundations is possible, since much of Kant's reasoning about the empirical concept of matter can be explained by his views on how the construction of empirical concepts is possible. ;Kant's quasi-mathematical constructions are pivotal in Friedman's interpretation. Constructibility is Kant's criterion of acceptability for the concepts of natural science. Yet Kant notoriously fails to construct the dynamical concept of matter, and accepts this failure with an equally notorious complacency. I argue that Kant's criteria of empirical concept construction, apart from any prior ontological commitments, are enough to generate his views on matter. Kant's failure to construct the requisite concept of matter can be ascribed to a missing law of nature, a law of the relation of forces the discovery of which Kant thought imminent. I conclude that matter theory is central to the Metaphysical Foundations, but that this does not undermine Kant's stated aim of giving the a priori ground of Newtonian science. (shrink)

Im ersten Teil des Anhangs zur Transzendentalen Dialektik entwickelt Kant einen Übergang zwischen dem logischen Gebrauch der Vernunft und den transzendentalen Prinzipien der Vernunft. Basierend auf methodologischen Überlegungen zur Chemie, zur physiologischen Anthropologie und zur Entwicklungsgeschichte astronomischer Grundannahmen versucht Kant, diese Prinzipien in ihrem transzendentalen Status zu rechtfertigen und ihre Kompatibilität mit anderen Teilen der Kritik der reinen Vernunft nachzuweisen. Ausgehend von diesen wissenschaftstheoretischen Beispielen wird für eine heuristisch- pragmatische Rechtfertigung der transzendentalen Prinzipien der Vernunft und eine ideelle Funktion der (...) durch diese Prinzipien gewonnenen Ideen argumentiert. Dabei lässt sich die enge Verbindung zwischen den transzendentalen Prinzipien des ersten Teils des Anhangs zur Transzendentalen Dialektik und Kants Konzept der rationalen Naturwissenschaft in den Metaphysischen Anfangsgründen der Naturwissenschaft nachweisen. (shrink)

In 1792 and 1798 Kant noticed two basic problems with hisMetaphysical Foundations of Natural Science (MAdN) which opened a crucial gap in the Critical system as a whole. Why is theMAdN so important? I show that the Analogies of Experience form an integrated proof of transeunt causality. This is central to Kant's answer to Hume. This proof requires explicating the empirical concept of matter as the moveable in space, it requires the specifically metaphysical principle that every physical event has an (...) external cause, and it requires a metaphysical principle regarding the individuation of spatio-temporal things. These three doctrines are not defended in the firstCritique, but only in theMAdN. Kant's transcendental analysis of the conditions of experience thus requires the special metaphysics of theMAdN. This marks an important shift in Kant's view of the metaphysical basis of the transcendental philosophy. (shrink)

While the term “metaphilosophy” enjoys increasing popularity in Kant scholarship, it is neither clear what distinguishes a metaphilosophical theory from a philosophical one nor to what extent Kant’s philosophy contains metaphilosophical views. In the first part of the article, I will introduce a demarcation criterion and show how scholars fall prey to the fallacy of extension confusing Kant’s philosophical theories with his theories about philosophy. In the second part, I will analyze eight elements for an “imperfect definition” of philosophy outlining (...) the scope of Kant’s explicit metaphilosophy against the backdrop of recent metaphilosophical research: scientific concept of philosophy, philosophy as an activity, worldly concept, philosophy as a science, philosophy as an architectonic idea, philosophy as a social practice and the appropriate holding-to-be-true, reason as the absolute condition and subject of philosophy, and methodology of philosophy. I will put these elements together for an attempt to give an imperfect definition of philosophy – something that Kant promised but never did – in the conclusion. (shrink)