| Acknowledgements | 第1-5页 |
| Abstract | 第5-6页 |
| 中文摘要 | 第6-8页 |
| Chapter 1 Introduction | 第8-10页 |
| Chapter 2 The History of Vagueness Studies | 第10-18页 |
| ·The First Sorites Paradox | 第10页 |
| ·The Sorites before the Rise of Modern Logic | 第10-11页 |
| ·The Sorites after the Rise of Modern Logic | 第11-16页 |
| ·Frege's View about the Sorites | 第12-13页 |
| ·Peirce's View about the Sorites | 第13-14页 |
| ·Russell's View about the Sorites | 第14-16页 |
| ·The Sorites after Russell | 第16-18页 |
| Chapter 3 Treatment of Semantic Vagueness from Logic Perspective | 第18-26页 |
| ·Three-valued Logic | 第18-22页 |
| ·From Two-valued Logic to Three-valued Logic | 第18-20页 |
| ·The Problems of Three-valued Logic | 第20-22页 |
| ·Fussy Logic and the Degree of Truth | 第22-26页 |
| ·The Set-up of Multi-valued Logic and Its Truth Tables | 第22-24页 |
| ·The Problems for the Degree of Truth | 第24-26页 |
| Chapter 4 Treatment of Vagueness from Pragmatic Perspective | 第26-32页 |
| ·Vagueness as a Pragmatic Phenomenon | 第26-28页 |
| ·Vagueness and Context-dependence | 第28-30页 |
| ·Problems for the Pragmatic Account of Vagueness | 第30-32页 |
| Chapter 5 Treatment of Vagueness from Epistemic Perspective | 第32-44页 |
| ·Vagueness and the Development of Cognitive Linguistics | 第32-39页 |
| ·Categorization as a Source of Vagueness | 第32-35页 |
| ·Prototypes and Fuzzy Sets | 第35-36页 |
| ·Family Resemblance: the Resemblance between Categories | 第36-39页 |
| ·Vagueness as Ignorance of the Boundary in the Semantic Extension of a Predicate | 第39-44页 |
| ·Inexact Knowledge and Margin for Error Principles | 第39-40页 |
| ·Inexactness and Ignorance | 第40-44页 |
| Chapter 6 Conclusion | 第44-45页 |
| Bibliography | 第45-46页 |
