Mark Sainsbury is Susan Stebbing Professor of Philosophy at King's College London. He is the author of Russell (1979) and Paradoxes (second edition, 1995).

"This book provides a valuable philosophical accompaniment to the study of elementary formal logic, demonstrating the role of logical analysis in philosophy. The second edition takes account of new work from the last decade, and presents the old material with even greater clarity." Dorothy Edgington, University of Oxford "Logical Forms is written in a way that makes the dry, abstract problems of philosophical logic accessible. It is one of the best books of its kind and is thoroughly recommended." Francis Moorcroft, University of Hull, THES, 1/6/01

• Preface. Introduction.1. Validity.2. Truth Functionality.3. Conditionals and Probabilities.4. Quantification.5. Necessity.6. The Project pf formalization.Glossary.List of Symbols.Bibliography.Index.