This book, one of the first full-length studies of the modalities to emerge from the debate to which Saul Kripke, David Lewis, Ruth Marcus and others have contributed, is an exploraton and defence of the notion of modality "de re," the idea that objects have both essential and accidental properties. The arguement is developed by means of the notion of possible worlds and ranges over key problems including the nature of essence, trans-world identity, negative existential propositions, and the existence of unactual objects in ...

The Nature of Necessity 1978, OUP Oxford, Oxford, England

ISBN-13: 9780198244141

Revised edition

Trade paperback

The Nature of Necessity 1974, Clarendon Press

ISBN-13: 9780198244042