RÉSUMÉ : Afin de circonscrire lescepticisme qui lui paraît miner l'entreprise métaphysique des Lumières, il est apparu nécessaire au Kant de la période critique de répondre à trois formes de scepticisme : au scepticisme baylien, qui s'interroge sur la capacité de la raison à parvenir à définir une vérité en rapport avec les idées de cette même raison; au scepticisme humien, ce qui le conduit à distinguer la question soulevée par Hume de son scepticisme pour parvenir à dégager la possibilité (...) de jugements synthétiques a priori; et au scepticisme cartésien, qui met en jeu le lien entre concepts empiriques et choses du monde extérieur. L,'analyse du traitement qu'il en propose montre que le scepticisme joue un rôle fondamental au sein de l'entreprise critique si bien qu'il peut être considéré comme un allié possible afin de rabattre les prétentions du dogmatisme idéaliste.ABSTRACT: In his critical period, Kant thought that scepticism was a threat to the metaphysical enterprise of Enlightenment. He consequently tried to tackle three of its species: Baylean scepticism, which doubts that reason could establish any truth concerning its ideas; Humean scepticism, which must be distinguished from Hume's formulation of the problem if we want to show that synthetic a priori judgements are possible; and Cartesian scepticism, which puts in doubt the reference of empirical concepts to things in the external world. Kant's treatment reveals the fundamental role played by scepticism in his critical enterprise not only as a tripIe challenge to the critical project, but also as an ally against idealist dogmatism. (shrink)

Perhaps one of the most difficult passages in Hegel's Science of Logic is his treatment of contradiction. If each moment of Hegel's logic is understood to constitute a sort of proof and since contradiction itself is presented as a moment of the logic, then in what sense can one comprehend a proof of contradiction as such? It is difficult to formulate this in any way that does not sound fundamentally incoherent, since it is not just at odds with our ordinary (...) way of thinking but also with the overwhelming majority of the Western philosophical tradition. The basic problem, essentially, is this: if Hegel's logic includes contradiction as one of its moments, then how is Hegel's entire philosophical project not simply incoherent? In the first part of this article, I will attempt to demonstrate one way in which Hegel's treatment of contradiction could in fact be considered coherent, through a close reading of the relevant passages. In this reading, I will particularly focus on the function of Hegel's dialectical concept of sublation (aufheben), and attempt to show (by example) how analysing Hegel's nuanced use of sublation can help us to work through some of his logic's complexities. The overall purpose here will be to present a systematic (as opposed to historical) exposition of Hegel's concept of contradiction and to illustrate the important role that this concept (as the contradiction of contradiction) plays in Hegel's logical method. (shrink)

Hegel's empty formalism charge is taken, virtually without exception, as a serious objection to Kant's categorical imperative and a powerful refutation of his formalist ethics. The dominant interpretation is represented by Bradley, Paton, Mill, Korsgaard, Guyer, Wood, Schneewind, Sedgwick, more recently, Freyenhagen, and others. So far, the dominant interpretation has remained powerfully influential and virtually unchallenged.However, the dominant interpretation tends to take Hegel's empty formalism in isolation from other texts in the corpus, his holistic system, and dialectical method in general. (...) What makes this non-contextualised approach problematic is that it ignores his remarks on formalism in other texts where his use of dialectical and sceptical method is more in evidence. Hegel's emptiness remarks span his entire career, from their appearance in Jena right up to the end of his career in Berlin. In Jena, his views on formal thinking in a logical sense developed alongside his views on formalism in ethics. Prima facie, the arguments bring together two subject matters that seem to have nothing to do with one another. This may explain why no one has given an interpretation that brings the two domains together. But it is worth noting that Kant himself brings logical considerations to bear on his conception of the moral principle. His distinction between the form of a moral principle and its empirical content recalls his characterisation of logical laws in the firstCritique. (shrink)

This thesis aims to throw an illuminating light on the as yet neglected concept of nothing in Kant’s system, a concept which is taken into consideration, by Kant, in accordance with the guiding thread of the categories of the understanding. My main argument is that Kant has a fourfold division of nothing and each has a transcendental function in his system. This function is basically a limiting one; setting up negative determinations without which Kant’s system would have never been constituted (...) as it is now. It is shown in the thesis that the concept of nothing is divided basically into four: first, nothing as ens rationis that limits and thereby protects knowledge, secondly nothing as nihil privativum that defines the boundaries of phenomenal reality, thirdly nothing as ens imaginarium that makes possible the unity of experience and finally, nothing as nihil negativum that draws the lines of logical thinking. All make, in the last resort and by being the concepts of the opposite, experience possible. The thesis consists of four chapters. The first chapter is an exposition of all four divisions of nothing, the second is the display specifically of the concepts of ens rationis and nihil negativum, and the third is of the concepts of ens imaginarium and nihil privativum. The auxiliary argument of the thesis is that while Hegel makes a strong charge of externality against and thereby severely criticizes the Kantian concept of the thing-in-itself, - the concept of which I propose to be contained under the concept of ens rationis- Kant has equally convincing arguments against such a charge. This is the topic of the fourth and final chapter which has an implicit aim of creating the image of a powerful critical Hegel but on the other hand an equally enduring and war-like Kant. Kant is presented as a philosopher who has powerful responses to institute a balance between himself and his opponent. When Kant’s differing concepts of nothing are taken into account, Hegel’s attack of externality, it is maintained, appears not to have taken into account the full measure of the resources of the Kantian position. Even when it is said that the attack is against one specific concept of the thing-in-itself alone, Kant still seems to have enough resources for toleration and defence indeed. (shrink)