The Is-Ought Problem
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The Is-Ought Problem : An Investigation in Philosophical Logic

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Description

Can OUGHT be derived from IS? This book presents an investigation of this time-honored problem by means of alethic-deontic predicate logic. New in this study is the leitmotif of relevance: is-ought inferences indeed exist, but they are all irrelevant in a precise logical sense. New proof techniques establish this result for very broad classes of logics. A profound philosophical analysis of is-ought bridge principles supplements the logical study. The final results imply incisive limitations for the justifiability of ethics as opposed to empirical science.
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Product details

  • Hardback | 332 pages
  • 155 x 235 x 20.57mm | 1,480g
  • Dordrecht, Netherlands
  • English
  • 1997 ed.
  • X, 332 p.
  • 0792344103
  • 9780792344100

Table of contents

Preface. 1. Philosophical Background and Program of the Study. 2. The Logical Background: A.D. 1-Logics. 3. The Logical Explication of Hume's Thesis. 4. The General Hume Thesis GH. 5. The Special Human Thesis SH. 6. Weakened Vesions of Hume's Thesis in A.D. 1- Logics with Bridge Principles. 7. A.D. 1-Logics with Weak Alethic Fragments: As A Subjective Propositional Attitude. 8. Generalizations. 9. Some Applications to Ethical Arguments. 10. The Problems of Identity and Existence. 11. Are There Analytic Bridge Principles? A Philosophical Investigation. 12. Are Synthetic Bridge Principles Scientifically Justifiable? Appendix. Notes. Bibliography.
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Review quote

`... anyone interested in deontic logic should benefit from the insights of this book. ... the work is clearly written and excellently edited.'
History and Philosophy of Logic, 19 (1998)
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