The strongest version of the principle of the Identity of Indiscernibles states that of necessity, there are no distinct things with all their universals in common (where such putative haecceities as being Aristotle do not count as universals: I use 'universal' rather than 'property' here and in what follows for the simple reason that 'universal' is the term of art that most safely excludes haecceities from its instances). It is commonly supposed that Max Black's famous paper 'The identity of indiscernibles' (...) (2) refutes this thesis. (Armstong's [1], chapter 9 is representative here.) Black argues ([2], p. 156) that it is perfectly possible that there be a world consisting solely of two indiscernible spheres at some distance to each other and that this world constitutes a counterexample to the principle above. The strongest version of the bundle theory of substance claims that of necessity, the substances that make up the world are bundles of universals.1 It is commonly supposed that a consequence of Black's defeat of the principle of the Identity of Indiscernibles is that this bundle theory of substance is mistaken. (Again, Armstong's [1] is representative.) I shall argue that Black's thought experiment does not defeat the bundle theory and that, as a result, the bundle theory can be used to salvage the principle of the Identity of Indiscernibles. (shrink)

This paper canvasses the various dimensions along which theories of truth may disagree about the extent to which truth is minimal.

(1996). Compatibilist semantics in metaphysics: A case study. Australasian Journal of Philosophy: Vol. 74, No. 1, pp. 117-134. doi: 10.1080/00048409612347101.

Those who call themselves ‘scientific realists’ have been concerned to defend one or more of the following cluster of theses: The scientific enterprise’s primary goal is to discover a theory that correctly describes a mind-independent reality. Scientists believe that many of the central claims of current scientific theories correctly describe a mind-independent reality. Moreover, in forming such beliefs, they do not take themselves to be going beyond the bounds of science. If scientific activity continues, science will eventually succeed in providing (...) an account of mind-independent reality that is at least approximately true. Many of the central claims of current scientific theories correctly describe reality. Clearly, and are pieces of scientific sociology, in that they express judgements about the attitudes of scientists towards their theories, while and express judgements about the extent to which science is able to discover the way the world is. and the ‘Sociological Theses’ and the ‘Non-Sociological Theses’.) In this paper, I shall discuss what Bas van Fraassen’s work has to tell us about these claims. I shall argue that at best, he has pointed to one important respect in which defenders of scientific realism may have been on the wrong track. Such defenders have, historically, attempted to provide decisive reasons for believing one or more of the above theses. Van Fraassen has given grounds for thinking that no such rationally compelling reasons are to be had. But since that hardly implies that anyone who subscribes to either the Sociological or Non-Sociological Theses is irrational, it follows that van Fraassen’s polemic fails to undermine scientific realism in any serious way. Correspondingly, I shall argue that van Fraassen’s defence of an alternative to scientific realism, his so-called ‘constructive empiricism’, has only limited success. (shrink)

The need to address our question arises from two sources, one in Kant and the other in a certain type of response to so-called Reformed epistemology. The first source consists in a tendency to distinguish theoretical beliefs from practical beliefs , and to treat theistic belief as mere practical belief. We trace this tendency in Kant's corpus, and compare and contrast it with Aquinas's view and a more conservative Kantian view. We reject the theistic-belief-as-mere-practical-belief view: it is bad descriptive anthropology, (...) it embraces a misguided ideal of a fragmented self unattainable by human beings, and it will deter people from the most desirable sort of faith. The second source consists in the idea that since theistic beliefs function as answers to why-questions, their epistemic status hangs on whether they meet certain distinctively explanatory standards, whatever support they might receive from other sources. We argue that this is a non-sequitur and suggest questions for further research. (shrink)

In this essay, we explore a fresh avenue into mind-body dualism by considering a seemingly distant question posed by Frege: "Why is it absurd to suppose that Julius Caesar is a number?". The essay falls into three main parts. In the first, through an exploration of Frege’s Julius Caesar problem, we attempt to expose two maxims applicable to the mind-body problem. In the second part, we draw on those maxims in arguing that “full blown dualism” is preferable to more modest, (...) property-theoretic, versions. Finally, in the third part we close by suggesting that full blown dualism need not be spooky, resurrecting a broadly Lockean, rather than Cartesian, metaphysical picture. (shrink)

This study addresses a range of central topics in Anglo-American philosophy of language.

According to an externalist theory of content the content of an individual’s thoughts and the meaning of her words need not supervene on her intrinsic history. Two individuals may be intrinsically exactly alike yet entertain different thoughts, and attach different meanings to the words they use. ETC, which has been most notably defended by Saul Kripke, Hilary Putnam and Tyler Burge, has attained the status of current orthodoxy. Nevertheless, some maintain that combining ETC with the premisses that we have privileged (...) access to our intentional states yields a surprising conclusion. It yields the conclusion that we can have a priori knowledge of features of the external world that seem only accessible to empirical investigation. Call the argument from ETC and privileged access to this conclusion the main argument. Some take the main argument to be a reductio of ETC. Since we have privileged access to our intentional states, and lack the a priori knowledge attributed by the main argument, ETC is false. Some take the main argument to refute the premisses that we have privileged access to those intentional states falling within the scope of ETC. Others see the main argument as a refutation of external world scepticism. We will show that the main argument does not support any of these interesting conclusions. We will show that the main argument does not threaten to restrict privileged access, refute external world scepticism, or constitute a reductio of ETC. More exactly, we will show that the most defensible version of ETC, even when combined with the premiss that we have unrestricted privileged access to our intentional states, yields no a priori knowledge of the external world. (shrink)

Introduction: Philosophy in Mind / Michaelis Michael and John O’Leary-Hawthorne -- AI and the Synthetic A Priori / Jose Benardete -- Armchair Metaphysics /Frank Jackson -- Doubts About Conceptual Analysis /Gilbert Harman -- Deflationary Self-Knowledge / Andre Gallois -- How to Get to Know One’s Own Mind: Some Simple Ways / Annette Baier -- Psychology in Perspective / Huw Price -- Can Philosophy of Language Provide the Key to the Foundations of Ethics? /Karl-Otto Apel --Unprincipled Decisions / Lee (...) Overton -- Philosophy and Commonsense: The Case of Weakness of Will / Jeanette Kennett and Michael Smith -- Reasoning and Representing / Robert Brandom -- The Problem of Consciousness / John Searle -- Godel’s Theorem and the Mind... Again / Graham Priest -- Epistemology and the Diet Revolution / Gilbert Harman -- Truth-Aptness and Belief / John O’Leary-Hawthorne -- Cubism, Perspective, Belief / Michaelis Michael. Objectivity and Modern Idealism: What is The Question? / Gideon Rosen. (shrink)

Increasingly, the mind is being treated as a fit subject for scientific inquiry. As cognitive science and empirical psychology strive to uncover the mind's secrets, it is fitting to inquire as to what distinctive role is left for philosophy in the study of mind. This collection, which includes contributions by some of the leading scholars in the field, offers a rich variety of perspectives on this issue. Topics addressed include: the place of a priori inquiry in philosophy of mind, moral (...) psychology, consciousness, social dimensions of intentionality, the relation of logic to philosophical psychology, objectivity and the mind, and privileged access. (shrink)

The need to address our question arises from two sources, one in Kant and the other in a certain type of response to so-called Reformed epistemology. The first source consists in a tendency to distinguish theoretical beliefs from practical beliefs (commitments to the world's being a certain way versus commitments to certain pictures to live by), and to treat theistic belief as mere practical belief. We trace this tendency in Kant's corpus, and compare and contrast it with Aquinas's view and (...) a more conservative Kantian view. We reject the theistic-belief-as-mere-practical-belief view: it is bad descriptive anthropology, it embraces a misguided ideal of a fragmented self unattainable by human beings, and it will deter people from the most desirable sort of faith. The second source consists in the idea that since theistic beliefs function as answers to why-questions, their epistemic status hangs on whether they meet certain distinctively explanatory standards, Whatever support they might receive from other sources. We argue that this is a non-sequitur and suggest questions for further research. (shrink)

Some central epistemological notions are expressed by sentential operators O that entail the possibility of knowledge in the sense that 'Op' entails 'It is possible to know that p'. We call these modal-epistemological notions. Using apriority and being in a position to know as case studies, we argue that the logics of modal epistemological notions are extremely weak. In particular, their logics are not normal and do not include any closure principles.

We address three fundamental questions: What does it mean for an entity to be living? What is the role of inter-organismic collaboration in evolution? What is a biological individual? Our central argument is that life arises when lineage-forming entities collaborate in metabolism. By conceiving of metabolism as a collaborative process performed by functional wholes, which are associations of a variety of lineage-forming entities, we avoid the standard tension between reproduction and metabolism in discussions of life – a tension particularly evident (...) in discussions of whether viruses are alive. Our perspective assumes no sharp distinction between life and non-life, and does not equate life exclusively with cellular or organismal status. We reach this conclusion through an analysis of the capabilities of a spectrum of biological entities, in which we include the pivotal case of viruses as well as prions, plasmids, organelles, intracellular and extracellular symbionts, unicellular and multicellular life-forms. The usual criterion for classifying many of the entities of our continuum as non-living is autonomy. This emphasis on autonomy is problematic, however, because even paradigmatic biological individuals, such as large animals, are dependent on symbiotic associations with many other organisms. These composite individuals constitute the metabolic wholes on which selection acts. Finally, our account treats cooperation and competition not as polar opposites but as points on a continuum of collaboration. We suggest that competitive relations are a transitional state, with multi-lineage metabolic wholes eventually outcompeting selfish competitors, and that this process sometimes leads to the emergence of new types or levels of wholes. Our view of life as a continuum of variably structured collaborative systems leaves open the possibility that a variety of forms of organized matter – from chemical systems to ecosystems – might be usefully understood as living entities. (shrink)

There is a class of fictionalist strategies (the reflexive fictionalisms) which appear to suffer from a common problem: the problem that the entities which are supposedly fictional turn out, by the lights of the fictionalist theory itself, to exist. The appropriate solution is to reject so-called strong fictionalism in each case: that is, to reject the variety of fictionalism which takes appeal to the domain of fictional entities to provide an explanation or analysis of the operators or predicates with which (...) the objects are systematically correlated. (shrink)