Over his philosophical career, David Wiggins has produced a body of work that, though varied and wide-ranging, stands as a coherent and carefully integrated whole. In this book Ferner examines Wiggins’ conceptualist-realism, his sortal theory ‘D’ and his human being theory in order to assess how far these elements of his systematic metaphysics connect. In addition to rectifying misinterpretations and analysing the relations between Wiggins’ works, Ferner reveals the importance of the philosophy of biology to Wiggins’ approach. This book elucidates the biological anti-reductionism present in Wiggins’ work and highlights how this stance stands as a productive alternative to emergentism. With an analysis of Wiggins’ construal of substances, specifically organisms, the book goes on to discuss how Wiggins brings together the concept of a person with the concept of a natural substance, or human being. An extensive introduction to the work of David Wiggins, as well as a contribution to the dialogue between personal identity theorists and philosophers of biology, this book will appeal to students and scholars working in the areas of philosophy, biology and the history of Anglophone metaphysics.

Philosophy in the sixteenth through eighteenth centuries has traditionally been characterized as being primarily concerned with epistemological issues. This book is not intended to overturn this characterization but rather to balance it through an examination of equally important metaphysical, or ontological, positions held, explicitly or implicitly, by philosophers in this period. Major philosophers whose views are discussed in this book include Descartes, Malebranche, Spinoza, Locke, Berkeley, Hume, Leibniz, Wolff, and Kant. In addition, the contributors of minor Cartesians, especially Regis and Desgabets, are analyzed in a separate chapter. Although the views of early modern philosophers on individuation and identity have been discussed before, these discussions have usually been treated as asides in a larger context. This book is the first to concentrate on the problems of individuation and identity in early modern philosophy and to trace their philosophical development through the period in a coherent way.

Taking into account significant developments in the metaphysical thinking of E. J. Lowe over the past 20 years, More Kinds of Being: A Further Study of Individuation, Identity, and the Logic of Sortal Terms presents a thorough reworking and expansion of the 1989 edition of Kinds of Being. Brings many of the original ideas and arguments put forth in Kinds of Being thoroughly up to date in light of new developments Features a thorough reworking and expansion of the earlier work, rather than just a new edition Reflects the author's conversion to what he calls 'the four-category ontology,' a metaphysical system that takes its inspiration from Aristotle Provides a unified discussion of individuation and identity that should prove to be essential reading for philosophers working in metaphysics.

As witnessed by recent films such as Fight Club and Identity, our culture is obsessed with multiple personality—a phenomenon raising intriguing questions about personal identity. This study offers both a full-fledged philosophical theory of personal identity and a systematic account of multiple personality. Gunnarsson combines the methods of analytic philosophy with close hermeneutic and phenomenological readings of cases from different fields, focusing on psychiatric and psychological treatises, self-help books, biographies, and fiction. He develops an original account of personal identity (the authorial correlate theory) and offers a provocative interpretation of multiple personality: in brief, "multiples" are right about the metaphysics but wrong about the facts.

Can quantum particles be regarded as individuals, just like books, tables and people? According to the 'received' view - articulated by several physicists in the immediate aftermath of the quantum revolution - quantum physics itself tells us they cannot: quantum particles, unlike their classical counterparts, must be regarded as 'non-individuals' in some sense. However, recent work has indicated that this is not the whole story and that the theory is also consistent with theposition that such particles can be taken to be individuals, albeit at a metaphysical price.Drawing on philosophical accounts of identity and individuality, as well as the histories of both classical and quantum physics, the authors explore these two alternative metaphysical packages. In particular, they argue that if quantum particles are regarded as individuals, then Leibniz's famous Principle of the Identity of Indiscernibles is in fact violated. Recent discussions of this conclusion are analysed in detail and, again, the costs involved in saving the Principle are carefullyconsidered.Taking the alternative package, the authors deploy recent work in non-standard logic and set theory to indicate how we can make sense of the idea that objects can be non-individuals. The concluding chapter suggests how these results might then be extended to quantum field theory.Identity in Physics brings together a range of work in this area and further develops the authors' own contributions to the debate. Uniquely, as the title indicates, it situates this work in the appropriate formal, historical, and philosophical contexts.

This book offers a sustained re-evaluation of the most central and perplexing themes of Leibniz's metaphysics. In contrast to traditional assessments that view the metaphysics in terms of its place among post-Cartesian theories of the world, Jan Cover and John O'Leary-Hawthorne examine the question of how the scholastic themes which were Leibniz's inheritance figure - and are refigured - in his mature account of substance and individuation. From this emerges a sometimes surprising assessment of Leibniz's views on modality, the Identity of Indiscernibles, form as an internal law, and the complete-concept doctrine. As a rigorous philosophical treatment of a still-influential mediary between scholastic and modern metaphysics, this study will be of interest to historians of philosophy and contemporary metaphysicians alike.