Jonathan Barnes taught at Oxford for 25 years, being a Fellow first of Oriel and then of Balliol. He then spent eight years at the University of Geneva, before becoming Professor of Ancient Philosophy at the Sorbonne. He is a Fellow of the British Academy, and of the American Academy of Arts and Sciences. His many publications include The Ontological Argument (Macmillan, 1972); Aristotle's Posterior Analytics (Clarendon Press, 2nd edition 1993); Aristotle (OUP, 1982); The Complete Works of Aristotle (Princeton UP, 1984); Truth, etc. (Clarendon Press, 2007); and Method and Metaphysics: Essays in Ancient Philosophy I (OUP, 2011); with J. Annas, The Modes of Scepticism (CUP, 1985); Early Greek Philosophy (Penguin, 1987); The Toils of Scepticism (CUP, 1990); The Cambridge Companion to Aristotle (CUP, 1995); Porphyry: Introduction (Clarendon Press, 2003).

• Contents ; Preface ; 1. Galen, Christians, logic ; 2. Cicero on logic ; 3. Logical form and logical matter ; 4. Grammar on Aristotle's terms ; 5. Peripatetic negations ; 6. Aristotle's Categories and Aristotle's 'categories' ; 7. Syllogistic and the classification of predicates ; 8. Speusippus and Aristotle on homonymy ; 9. Property in Aristotle's Topics ; 10. Sheep have four legs ; 11. The Law of Contradiction ; 12. Proofs and the syllogistic figures ; 13. Aristotle and Stoic logic ; 14. Theophrastus and Stoic logic ; 15. Terms and sentences: Theophrastus and wholly hypothetical syllogisms ; 16. Logic and the dialecticians ; 17. The Logical Investigations of Chrysippus ; 18. Piqana; sunnhmevna ; 19. What is a disjunction? ; 20. Medicine, experience, and logic ; 21. Meaning, saying, and thinking ; 22. Epicurus: meaning and thinking ; 23. Ammonius and adverbs ; 24. Priscian and connectors ; 25. Late Greek syllogistic ; 26. Boethius and the study of logic ; 27. Syllogistic in the anon Heiberg ; Bibliography ; Indexes

Jonathan Barnes taught at Oxford for 25 years, being a Fellow first of Oriel and then of Balliol. He then spent eight years at the University of Geneva, before becoming Professor of Ancient Philosophy at the Sorbonne. He is a Fellow of the British Academy, and of the American Academy of Arts and Sciences. His many publications include The Ontological Argument (Macmillan, 1972); Aristotle's Posterior Analytics (Clarendon Press, 2nd edition 1993); Aristotle (OUP, 1982); The Complete Works of Aristotle (Princeton UP, 1984); Truth, etc. (Clarendon Press, 2007); and Method and Metaphysics: Essays in Ancient Philosophy I (OUP, 2011); with J. Annas, The Modes of Scepticism (CUP, 1985); Early Greek Philosophy (Penguin, 1987); The Toils of Scepticism (CUP, 1990); The Cambridge Companion to Aristotle (CUP, 1995); Porphyry: Introduction (Clarendon Press, 2003).

• Contents ; Preface ; 1. Galen, Christians, logic ; 2. Cicero on logic ; 3. Logical form and logical matter ; 4. Grammar on Aristotle's terms ; 5. Peripatetic negations ; 6. Aristotle's Categories and Aristotle's 'categories' ; 7. Syllogistic and the classification of predicates ; 8. Speusippus and Aristotle on homonymy ; 9. Property in Aristotle's Topics ; 10. Sheep have four legs ; 11. The Law of Contradiction ; 12. Proofs and the syllogistic figures ; 13. Aristotle and Stoic logic ; 14. Theophrastus and Stoic logic ; 15. Terms and sentences: Theophrastus and wholly hypothetical syllogisms ; 16. Logic and the dialecticians ; 17. The Logical Investigations of Chrysippus ; 18. Piqana; sunnhmevna ; 19. What is a disjunction? ; 20. Medicine, experience, and logic ; 21. Meaning, saying, and thinking ; 22. Epicurus: meaning and thinking ; 23. Ammonius and adverbs ; 24. Priscian and connectors ; 25. Late Greek syllogistic ; 26. Boethius and the study of logic ; 27. Syllogistic in the anon Heiberg ; Bibliography ; Indexes

Jonathan Barnes taught at Oxford for 25 years, being a Fellow first of Oriel and then of Balliol. He then spent eight years at the University of Geneva, before becoming Professor of Ancient Philosophy at the Sorbonne. He is a Fellow of the British Academy, and of the American Academy of Arts and Sciences. His many publications include The Ontological Argument (Macmillan, 1972); Aristotle's Posterior Analytics (Clarendon Press, 2nd edition 1993); Aristotle (OUP, 1982); The Complete Works of Aristotle (Princeton UP, 1984); Truth, etc. (Clarendon Press, 2007); and Method and Metaphysics: Essays in Ancient Philosophy I (OUP, 2011); with J. Annas, The Modes of Scepticism (CUP, 1985); Early Greek Philosophy (Penguin, 1987); The Toils of Scepticism (CUP, 1990); The Cambridge Companion to Aristotle (CUP, 1995); Porphyry: Introduction (Clarendon Press, 2003).

• Contents ; Preface ; 1. Galen, Christians, logic ; 2. Cicero on logic ; 3. Logical form and logical matter ; 4. Grammar on Aristotle's terms ; 5. Peripatetic negations ; 6. Aristotle's Categories and Aristotle's 'categories' ; 7. Syllogistic and the classification of predicates ; 8. Speusippus and Aristotle on homonymy ; 9. Property in Aristotle's Topics ; 10. Sheep have four legs ; 11. The Law of Contradiction ; 12. Proofs and the syllogistic figures ; 13. Aristotle and Stoic logic ; 14. Theophrastus and Stoic logic ; 15. Terms and sentences: Theophrastus and wholly hypothetical syllogisms ; 16. Logic and the dialecticians ; 17. The Logical Investigations of Chrysippus ; 18. Piqana; sunnhmevna ; 19. What is a disjunction? ; 20. Medicine, experience, and logic ; 21. Meaning, saying, and thinking ; 22. Epicurus: meaning and thinking ; 23. Ammonius and adverbs ; 24. Priscian and connectors ; 25. Late Greek syllogistic ; 26. Boethius and the study of logic ; 27. Syllogistic in the anon Heiberg ; Bibliography ; Indexes