Deviant Logic, Fuzzy Logic: Beyond the Formalism

✍ Scribed by Susan Haack

• Publisher: University Chicago Press
• Year: 1996
• Tongue: English
• Leaves: 158
• Category: Library

✦ Synopsis

Initially proposed as rivals of classical logic, alternative logics have become increasingly important in areas such as computer science and artificial intelligence. Fuzzy logic, in particular, has motivated major technological developments in recent years.

Susan Haack's Deviant Logic provided the first extended examination of the philosophical consequences of alternative logics. In this new volume, Haack includes the complete text of Deviant Logic, as well as five additional papers that expand and update it. Two of these essays critique fuzzy logic, while three augment Deviant Logic's treatment of deduction and logical truth. Haack also provides an extensive new foreword, brief introductions to the new essays, and an updated bibliography of recent work in these areas.

Deviant Logic, Fuzzy Logic will be indispensable to students of philosophy, philosophy of science, linguistics, mathematics, and computer science, and will also prove invaluable to experienced scholars working in these fields.

✦ Table of Contents

Contens

Introduction, 1996 ix
Note on Notation xxi

DEVIANT LOGIC

Preface and Acknowledgements xxv

Part I
Chapter 1: 'Alternative' in 'Alternative Logic' 1
Chapter 2: Reason for Deviance 25
Chapter 3: Deviance and the Theory of Truth 47

Part II
Chapter 4: Future Contingents 73
Chapter 5: Intuitionism 91
Chapter 6: Vagueness 109
Chapter 7: Singular Terms and Existence 126
Chapter 8: Quantum Mechanics 148
Apendix 168

DEDUCTION AND LOGICAL TRUTH

Introduction 181
The Justification of Deduction 183
Dummer's Justification of Deduction 192
Analyticity and Logical Truth in The Roots of Reference 214

FUZZY LOGIC

Introduction 229
Do We Need 'Fuzzy Logic'? 232
Is Truth Flat or Bumpy? 243

Supplementary Bibliography of Selected Recent Material 259
Works Cited 267
Index 283