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Hailed as "amusing, persuasive, conversational, and engaging" (Times Higher Education Supplement), this stimulating volume cuts across various disciplines—including artificial intelligence, logic, and computer science—to illuminate the nature and importance of vagueness. Indeed, our daily lives are full of vagueness or fuzziness. We say someone is "tall," for example, but when exactly do we become tall—Five eleven? Six foot? Six one? Kees Van Deemter shows why vagueness is both unavoidable and useful, and he demonstrates how tempting—and how wrong—it often is to think in terms of black and white, instead of the richly graded spectrum of the world around us. Vagueness, the author argues, allows us to focus on what matters, leaving out irrelevant details, and adding texture to what would otherwise be unintelligible facts. The embrace of vagueness, however, comes at a price, for when degrees of grey are accepted, concepts like truth, belief, and proof loose their power, and we are banished from that paradise in which truth and falsity are the only possibilities.
Prologue
1. Introduction: False Clarity
Part 1: Vagueness, where one leasts expects it
2. Sex and similarity: On the Fiction of Species
3. Measurements that Matter
4. Identity and Gradual Change
5. Vagueness in Numbers and Maths
Part II: Theories of Vagueness
6. The Linguistics of Vagueness
7. Reasoning with Vague Information
8. Parrying a Paradox
9. Degrees of Truth
Part III: Working Models of Vagueness
10. Artificial Intelligence
11. When to be Vague: Computers as Authors
12. The Explusion from Boole's Paradise Epilogue: Guaranteed Correct Endnotes Further Reading Bibliography
Overview
Hailed as "amusing, persuasive, conversational, and engaging" (Times Higher Education Supplement), this stimulating volume cuts across various disciplines—including artificial intelligence, logic, and computer science—to illuminate the nature and importance of vagueness. Indeed, our daily lives are full of vagueness or fuzziness. We say someone is "tall," for example, but when exactly do we become tall—Five eleven? Six foot? Six one? Kees Van Deemter shows why vagueness is both unavoidable and useful, and he ...