Let us say that an extended object is “composed wholly of simples” just in case it is an aggregate of absolutely unextended parts spread throughout an extended region—that is, just in case there is a set S such that: every member is a point-sized part of the object, and for every x, x is part of the object if and only if it has a part in common with some member of S. Could a truly extended substance be composed entirely (...) of unextended parts? Reflection upon the fact that it must be at least possible for extended objects to touch one another suggests that the answer to this question is: No. (shrink)

This book is a defense of modal realism; the thesis that our world is but one of a plurality of worlds, and that the individuals that inhabit our world are only a few out of all the inhabitants of all the worlds. Lewis argues that the philosophical utility of modal realism is a good reason for believing that it is true.

This book offers original accounts of a number of central social phenomena, many of which have received little if any prior philosophical attention. These phenomena include social groups, group languages, acting together, collective belief, mutual recognition, and social convention. In the course of developing her analyses Gilbert discusses the work of Emile Durkheim, Georg Simmel, Max Weber, David Lewis, among others.

In this book, Eli Hirsch focuses on identity through time, first with respect to ordinary bodies, then underlying matter, and eventually persons. These are linked at various points with other aspects of identity, such as the spatial unity of things, the unity of kinds, and the unity of groups. He investigates how our identity concept ordinarily operates in these respects. He also asks why this concept is so cental to our thinking and whether we can justify seeing the world in (...) terms of such a concept. This is the revised and updated edition of a hardback published in 1982. (shrink)

E. J. Lowe; Coinciding objects: in defence of the ‘standard account’, Analysis, Volume 55, Issue 3, 1 July 1995, Pages 171–178, https://doi.org/10.1093/analys/5.

Abstract Ontological holism is the thesis that social groups are best understood as composite material particulars. At a high level of taxonomic classification groups such as mobs, tribes and nations are the same kind of thing as organisms and artefacts. This holism is opposed by ontological individualism, which maintains that in our formal and folk social scientific discourse we only really refer to individuals and the relations in which they stand. The paper begins from the claim that ontological holism is (...) given prima facie plausibility by the apparently ineliminable role of groups in some descriptions and explanations of the social domain. If the individualist accepts the link between indispensabilty and realism, then individualism must show that groups cannot play the role the holist requires. Three arguments are considered which aim to show that groups are indeed unfitted for this ineliminable role: the appeal to reduction-in principle, the claim that groups cannot possess the causal powers attributed to them by holism, and the view that holism is committed to the attribution of mental properties to groups. Each is rejected as a basis for undermining holism. The paper concludes that this leaves holism in a position to be articulated within a framework that supports a broadly naturalist conception of the social sciences. (shrink)

Let us say that an extended object is “composed wholly of simples” just in case it is an aggregate of absolutely unextended parts spread throughout an extended region—that is, just in case there is a set S such that: every member is a point-sized part of the object, and for every x, x is part of the object if and only if it has a part in common with some member of S. Could a truly extended substance be composed entirely (...) of unextended parts? Reflection upon the fact that it must be at least possible for extended objects to touch one another suggests that the answer to this question is: No. (shrink)

In this book, Eli Hirsch focuses on identity through time, first with respect to ordinary bodies, then underlying matter, and eventually persons.

In the process of arguing against all theories of extended material objects made up of simples, Dean Zimmerman has recently argued against the compossibility of continuous closed and continuous open material objects. But it is surely undeniable that point-like material objects are possible; plausible principles of recombination and the principle of unrestricted composition then lead to the possibility Zimmerman rejects. Fortunately, Zimmerman’s arguments can be resisted: what appear to be implausible modal consequences of the compossibility of open and closed continuous (...) material objects turn out to be merely the results of a decision to use ‘material object’ in a certain way. (shrink)

Biological species have been treated traditionally as spatiotemporally unrestricted classes. If they are to perform the function which they do in the evolutionary process, they must be spatiotemporally localized individuals, historical entities. Reinterpreting biological species as historical entities solves several important anomalies in biology, in philosophy of biology, and within philosophy itself. It also has important implications for any attempt to present an "evolutionary" analysis of science and for sciences such as anthropology which are devoted to the study of single (...) species. (shrink)

Locke thought it was a necessary truth that no two material bodies could be in the same place at the same time. Leibniz wasn't so sure. This paper sides with Leibniz. I examine the arguments of David Wiggins in defense of Locke on this point (Philosophical Review, January 1968). Wiggins’ arguments are ineffective.

Individualism comes in at least ten modes: ontological, logical, semantic, epistemological, methodological, axiological, praxiological, ethical, historical, and political. These modes are bound together. For example, ontological individualism motivates the thesis that relations are n-tuples of individuals, as well as radical reductionism and libertarianism. The flaws and merits of all ten sides of the individualist decagon are noted. So are those of its holist counterpart. It is argued that systemism has all the virtues and none of the defects of individualism and (...) holism. One such virtue is the ability to recognize that individualism is a system rather than an unstructured bag of opinions--which raises the question whether thorough and consistent individualism is at all possible. Key Words: holism • individualism • system • systemism. (shrink)