Modalities: Philosophical Essays.

Abstract

Introduction 1. Modalities and Intensional Languages 2. Iterated Deontic Modalities 3. Essentialism in Modal Logic 4. Essential attribution Appendix: Strict implication, deducibility and the deduction theorem 5. Quantification and ontology 6. Classes, collections, assortments, and individuals 7. Does the principle of substitutivity rest on a mistake? 8. Nominalism and the substitutional quantifier 9. Moral dilemmas and consistency 10. Rationality and believing the impossible 11. Spinoza and the ontological proof 12. On some post-1920s views of Russell on particularity, identity and individiation 13. Possibilia and possible worlds 14. A backward look at Quine's animadversions on modalities 15. Some revisionary proposals about belief and believing