The ontological debate on the nature of properties is alive as ever. Mainly, they are viewed either as universals or tropes (abstract particulars), an alternative with an immediate impact on what events are taken to be. Although much inquiry in philosophy of mind is done without a full awareness of it, some recent works suggest that the choice may have far-reaching consequences on central topics of this discipline, e.g., token physicalism, multiple realizability, mental causation, perception, introspection, self-awareness. This book explores the extent to which this is true with novel contributions by philosophers who have played a major role in bringing to the fore this interplay of foundational metaphysics and philosophical psychology and by other experts in these fields.

Properties and objects are everywhere, but remain a philosophical mystery. Douglas Ehring argues that the idea of tropes--properties and relations understood as particulars--provides the best foundation for a metaphysical account of properties and objects. He develops and defends a new theory of trope nominalism.

In the book If Tropes, the author attempts to approach and then deal with some of the most basic problems for a theory of tropes. The investigation proceeds from three basic assumptions: (i) tropes (i.e. particular properties) exist, (ii) only tropes exist (that is, tropes are the only basic or fundamental kind of entities), and (iii) the main-function for tropes is to serve as truth-makers for atomic propositions. Provided that one accepts these assumptions the author finds that the trope-theorist will have to deal with two important matters. Some atomic propositions seem to require universal truth-makers and others seem to require concrete truth-makers. This means that universals and concrete particulars will need to be constructed from the material of tropes. Such constructions are attempted and it is argued that it is possible to deal at least with these basic issues while staying squarely within the boundaries of a purely trope-theoretical framework. The book is written in an untechnical language but requires some prior understanding of basic metaphysics.

Donald C. Williams (1899-1983) was a key figure in the development of analytic philosophy. This book will be the definitive source for his highly original work, which did much to bring metaphysics back into fashion. It presents six classic papers and six previously unpublished, revealing his full philosophical vision for the first time.

Downward causation plays a fundamental role in many theories of metaphysics and philosophy of mind. It is strictly connected with many topics in philosophy, including but not limited to: emergence, mental causation, the nature of causation, the nature of causal powers and dispositions, laws of nature, and the possibility of ontological and epistemic reductions. Philosophical and Scientific Perspectives on Downward Causation brings together experts from different fields—including William Bechtel, Stewart Clark and Tom Lancaster, Carl Gillett, John Heil, Robin F. Hendry, Max Kistler, Stephen Mumford and Rani Lill Anjum —who delve into classic and unexplored lines of philosophical inquiry related to downward causation. It critically assesses the possibility of downward causation given different ontological assumptions and explores the connection between downward causation and the metaphysics of causation and dispositions. Finally, it presents different cases of downward causation in empirical fields such as physics, chemistry, biology and the neurosciences. This volume is both a useful introduction and a collection of original contributions on this fascinating and hotly debated philosophical topic.

Things are particulars and their qualities are universals, but do universals have an existence distinct from the particular things describable by those terms? And what must be their nature if they do? This book provides a careful and assured survey of the central issues of debate surrounding universals, in particular those issues that have been a crucial part of the emergence of contemporary analytic ontology. The book begins with a taxonomy of extreme nominalist, moderate nominalist, and realist positions on properties, and outlines the way each handles the phenomena of predication, resemblance, and abstract reference. The debate about properties and philosophical naturalism is also examined. Different forms of extreme nominalism, moderate nominalism, and minimalist realism are critiqued. Later chapters defend a traditional realist view of universals and examine the objections to realism from various infinite regresses, the difficulties in stating identity conditions for properties, and problems with realist accounts of knowledge of abstract objects. In addition, the debate between Platonists and Aristotelians is examined alongside a discussion of the relationship between properties and an adequate theory of existence. The book's final chapter explores the problem of individuating particulars. The book makes accessible a difficult topic without blunting the sophistication of argument required by a more advanced readership.

This book demonstrates the importance of ontology for a central debate in philosophy of mind. Mental causation seems an obvious aspect of the world. But it is hard to understand how it can happen unless we get clear about what the entities involved in the process are. An international team of contributors presents new work on this problem.