First published in 1962. Kant’s philosophical works, and especially the _Critique of Pure Reason_, have had some influence on recent British philosophy. But the complexities of Kant’s arguments, and the unfamiliarity of his vocabulary, inhibit understanding of his point of view. In _Kant’s Theory of Knowledge _an attempt is made to relate Kant’s arguments in the _Critique of Pure Reason _to contemporary issues by expressing them in a more modern idiom. The selection of issues discussed is intended to present a (...) continuous argument, of an epistemological kind, which runs centrally through the _Critique_. The argument deals with essentially with the problems, raised in the Transcendental Analytic, about the status of categories. It deals with certain preliminary assumptions made in setting these problems, and discusses the way in which the various sections of the Analytic contribute to their solution. It also deals with Kant’s criticisms of traditional metaphysics, and ends with an account of his effort in the Third Antinomy to resolve the conflict between freedom and causality, and so to effect a transition of knowledge to moral philosophy. (shrink)

It has long been disputed whether Kant's transcendental idealism requires two worlds ? one of appearances and one of things in themselves ? or only one. The one-world view must be wrong if it claims that individual spatio-temporal things can be identified with particular things in themselves, and if it fails to take seriously the doctrine of double affection; versions that insist on one world, without making claims about the identity of individual things, cannot say in what way the world (...) as we know it and the world of things in themselves can be ?the same?. The two-world view must be wrong if it denies Kant's empirical realism, or offers a phenomenalist interpretation of it. On moral grounds Kant ?identifies? each human person with a particular thing in itself, but the relationship here cannot be strict identity; instead its closeness may warrant regarding the two distinct entities as part of a composite whole. Perhaps up to the first edition of the Critique, Kant thought that empirical knowledge required a particular kind of close correspondence between appearances and things in themselves, one that would make it appropriate to speak of composite wholes here also. By the time of the second edition, he saw that there could be no good grounds for thinking that. In this respect something a bit like the one-world theory might make more sense for the first edition than for the second; but in both cases there is room to speak of two worlds as well. Talk of the number of worlds is metaphorical, and both metaphors have their dangers. (shrink)

Consider a circle and a pair of its semicircles. Which is prior, the whole or its parts? Are the semicircles dependent abstractions from their whole, or is the circle a derivative construction from its parts? Now in place of the circle consider the entire cosmos (the ultimate concrete whole), and in place of the pair of semicircles consider the myriad particles (the ultimate concrete parts). Which if either is ultimately prior, the one ultimate whole or its many ultimate parts?

Arthur Collins's succinct, revisionist exposition of Kant's Critique of Pure Reason brings a new clarity to this notoriously difficult text.

Michael Jubien’s Ontology, Modality, and the Fallacy of Reference is an interesting and lively discussion of those three topics. In ontology, Jubien defends, to a first approximation, a Quinean conception: a world of objects that may be arbitrarily sliced or summed. Slicing yields temporal parts; summing yields aggregates, or fusions. Jubien is very unQuinean in his explicit Platonism regarding properties and propositions, but concerns about abstracta are peripheral to much of the argumentation in the book.1 His version of the doctrine (...) that arbitrary mereological sums exist is nonstandard in that he views it as a convention (albeit a useful one) that we treat sums of objects as themselves being objects. Indeed, he views the concept of objecthood itself as being conventional. The world consists fundamentally of stuff, which we divide into things in any way that suits our purposes. In modality, Jubien’s views are to a first approximation Chisholmian: he holds the doctrine of mereological essentialism, according to which anything.. (shrink)

There is a well-known argument from Leibniz's Law for the view that coincident material things may be distinct. For given that they differ in their properties, then how can they be the same? However, many philosophers have suggested that this apparent difference in properties is the product of a linguistic illusion; there is just one thing out there, but different sorts or guises under which it may be described. I attempt to show that this ‘opacity’ defence has intolerable consequences for (...) the functioning of our language and that the original argument should therefore be allowed to stand. (shrink)

Identities formed with proper names may be contingent. this claim is made first through an example. the paper then develops a theory of the semantics of concrete things, with contingent identity as a consequence. this general theory lets concrete things be made up canonically from fundamental physical entities. it includes theories of proper names, variables, cross-world identity with respect to a sortal, and modal and dispositional properties. the theory, it is argued, is coherent and superior to its rivals, in that (...) it stems naturally from a systematic picture of the physical world. (shrink)

The paper is an interpretation and defense of Kant's conception of things in themselves as noumena, along the following lines. Noumena are transempirical realities. As such they have several important roles in Kant's critical philosophy (Section 1). Our theoretical faculties cannot obtain enough content for a conception of noumena that would assure their real possibility as objects, but can establish their merely formal logical possibility (Sections 2-3). Our practical reason, however, grounds belief in the real possibility of some noumena, and (...) even knowledge of the noumenal reality of a free will (Section 4). Section 5 defends Kant's conception of noumena as a good piece of philosophy, particularly with respect to its distinction between logical and real possibility. Are noumena numerically identical with experienced (phenomenal) objects? Kantian principles yield the answers that human selves are, God isn't, and it's harder to say about bodies (Section 6). (shrink)

Arthur Collins's succinct, revisionist exposition of Kant's _Critique of Pure Reason_ brings a new clarity to this notoriously difficult text. Until recently most readers, ascribing broadly Cartesian assumptions to Kant, have concluded that the _Critique_ advances an idealist philosophy, because Kant calls it "transcendental idealism" and because the work abounds in apparent confirmations of that interpretation. Collins maintains not only that this reading of Kant is false but also that it conceals Kant's real achievements. To counter it, he addresses the (...) themes and passages in the _Critique_ that seem to require an idealist thesis and shows how they may be better understood without ascribing any idealist philosophy to Kant. His account coheres with Kant's explicit "refutations" of idealism, it fits Kant's rejection of the imputation of idealism to him by early critics and readers, and it validates Kant's contention that the second edition of the _Critique_ changes the expression but not the doctrine of the first. (shrink)

The central thesis of this book is clear. According to Collins, Kant is not an idealist of any sort. Kant is not an idealist, on Collins’s view, because he neither denies the existence of a non-mental reality nor claims that we cannot be sure that there is any non-mental reality. Because Kant explicitly criticizes both dogmatic and problematic forms of idealism, Collins concludes that the appellation “idealist” is altogether improperly ascribed to Kant. One might ask straightaway whether there might not (...) be another form of idealism that might properly be ascribed to Kant, for example, “transcendental idealism.” Alas, according to Collins, Kant’s own tendency to refer to his philosophy as “transcendental idealism” is quite unfortunate and quite misleading. It is misleading because “it suggests that Kant claims that the domain of objects is just a domain of ideas, that is, of mental representations”. Really? (shrink)

This study in fundamental ontology calls for rethinking some pedestrian assumptions about what there is and provides the motivation for a new theory of reference. It contains clear, crisp discussions of mereology, identity, reference, and necessity and should be valuable to metaphysicians and philosophers of language.