This volume collects the most important articles on the _ metaphysics of modality by noted philosopher Alvin _ Plantinga. The book chronicles Plantinga's thought from the late 1960's to the present. Platinga is here concerned with fundamental issues in mataphysics: what is the nature of _ abstract objects like possible worlds, properties, _ propositions, and such phenomena? Are there possible but _ non-actual objects? Can objects that do not exist exemplify properties? In this thorough and searching book, Plantinga addresses these and many other questions that continue to_ preoccupy philosophers in the field. This volume contains_ some of the best work in metaphysics from the past 30 years, and will remain a source of critical contention and keen interest among philosophers of metaphysics and philosophical logic for years to come.

Alvin Plantinga is John A. O'Brien Professor of Philosophy at the University of Notre Dame, and the author of Warranted Christian Belief (OUP 2000), Warrant: The Current Debate, Warrant and Proper Function (both OUP 1993), and The Nature of Necessity (OUP 1979).