List of figures. List of tables. Foreword. Preface. Preface to the Third Edition. 1. Introduction to fuzzy sets. Part One: Fuzzy mathematics. 2. Fuzzy sets - basic definitions. 3. Extensions. 4. Fuzzy measures and measures of fuzziness. 5. The extension principle and applications. 6. Fuzzy relations and fuzzy graphs. 7. Fuzzy analysis. 8. Possibility theory, probability theory, and fuzzy set theory. Part Two: Applications of fuzzy set theory. 9. Fuzzy logic and approximate reasoning. 10. Fuzzy sets and expert systems. 11. Fuzzy control. 12. Fuzzy data analysis. 13. Decision making in fuzzy environments. 14. Fuzzy set models in operations research. 15. Empirical research in fuzzy set theory. 16. Future perspectives. Bibliography. Index.