Jaakko Hintikka is the author or co-author of thirty volumes and of some 300 scholarly articles in mathematical and philosophical logic, epistemology, language theory, philosophy of science, history of ideas and history of philosophy, including Aristotle, Descartes, Leibniz, Kant, Peirce, The Bloomsbury Group, Husserl and Wittgenstein. He has also been active in international scholarly organizations, most recently as the First Vice-President of FISP, Vice-President of IIP and Co-Chair of the American Organizing Committee of the Twentieth World Congress of Philosophy. He has been Editor-in-Chief of the International Journal Synthese and the Managing Editor of Synthese Library since 1965.

• Essay 1. Is Alethic Modal Logic Possible?.- Essay 2. Reasoning About Knowledge in Philosophy: The Paradigm of Epistemic Logic.- Essay 3. Are There Nonexistent Objects? Why Not? But Where Are They?.- Essay 4. On Sense, Reference, and the Objects of Knowledge.- Essay 5. Impossible Possible Worlds Vindicated.- Essay 6. Towards a General Theory of Individuation and Identification.- Essay 7. On the Proper Treatment of Quantifiers in Montague Semantics.- Essay 8. The Cartesian cogito, Epistemic Logic and Neuroscience: Some Surprising Interrelations.- Essay 9. Quine on Who’s Who.- Essay 10. How Can Language Be Sexist?.- Essay 11. On Denoting What?.- Essay 12. Degrees and Dimensions of Intentionality.- Essay 13. Situations, Possible Worlds and Attitudes.- Essay 14. Questioning as a Philosophical Method.- Erratum.- Index of Subjects.- Index of Names.

Jaakko Hintikka is the author or co-author of thirty volumes and of some 300 scholarly articles in mathematical and philosophical logic, epistemology, language theory, philosophy of science, history of ideas and history of philosophy, including Aristotle, Descartes, Leibniz, Kant, Peirce, The Bloomsbury Group, Husserl and Wittgenstein. He has also been active in international scholarly organizations, most recently as the First Vice-President of FISP, Vice-President of IIP and Co-Chair of the American Organizing Committee of the Twentieth World Congress of Philosophy. He has been Editor-in-Chief of the International Journal Synthese and the Managing Editor of Synthese Library since 1965.

• Essay 1. Is Alethic Modal Logic Possible?.- Essay 2. Reasoning About Knowledge in Philosophy: The Paradigm of Epistemic Logic.- Essay 3. Are There Nonexistent Objects? Why Not? But Where Are They?.- Essay 4. On Sense, Reference, and the Objects of Knowledge.- Essay 5. Impossible Possible Worlds Vindicated.- Essay 6. Towards a General Theory of Individuation and Identification.- Essay 7. On the Proper Treatment of Quantifiers in Montague Semantics.- Essay 8. The Cartesian cogito, Epistemic Logic and Neuroscience: Some Surprising Interrelations.- Essay 9. Quine on Who’s Who.- Essay 10. How Can Language Be Sexist?.- Essay 11. On Denoting What?.- Essay 12. Degrees and Dimensions of Intentionality.- Essay 13. Situations, Possible Worlds and Attitudes.- Essay 14. Questioning as a Philosophical Method.- Erratum.- Index of Subjects.- Index of Names.

Jaakko Hintikka is the author or co-author of thirty volumes and of some 300 scholarly articles in mathematical and philosophical logic, epistemology, language theory, philosophy of science, history of ideas and history of philosophy, including Aristotle, Descartes, Leibniz, Kant, Peirce, The Bloomsbury Group, Husserl and Wittgenstein. He has also been active in international scholarly organizations, most recently as the First Vice-President of FISP, Vice-President of IIP and Co-Chair of the American Organizing Committee of the Twentieth World Congress of Philosophy. He has been Editor-in-Chief of the International Journal Synthese and the Managing Editor of Synthese Library since 1965.

• Essay 1. Is Alethic Modal Logic Possible?.- Essay 2. Reasoning About Knowledge in Philosophy: The Paradigm of Epistemic Logic.- Essay 3. Are There Nonexistent Objects? Why Not? But Where Are They?.- Essay 4. On Sense, Reference, and the Objects of Knowledge.- Essay 5. Impossible Possible Worlds Vindicated.- Essay 6. Towards a General Theory of Individuation and Identification.- Essay 7. On the Proper Treatment of Quantifiers in Montague Semantics.- Essay 8. The Cartesian cogito, Epistemic Logic and Neuroscience: Some Surprising Interrelations.- Essay 9. Quine on Who’s Who.- Essay 10. How Can Language Be Sexist?.- Essay 11. On Denoting What?.- Essay 12. Degrees and Dimensions of Intentionality.- Essay 13. Situations, Possible Worlds and Attitudes.- Essay 14. Questioning as a Philosophical Method.- Erratum.- Index of Subjects.- Index of Names.