Cover -- Half Title -- Title Page -- Copyright Page -- Original Title Page -- Original Copyright Page -- Table of Contents -- Acknowledgements -- Editor's Introduction -- 1. Necessity and Language -- 2. Factual, Mathematical and Metaphysical Inventories -- 3. A Priori Truths and Empirical Confirmation -- 4. Assuming the Logically Impossible -- 5. Invention and Discovery -- 6. Mathematical Generality -- 7. The Infinite in Mathematics -- 8. The Metaphysical Concept of Space -- 9. The Passing of an Illusion -- 10. On Making a Philosophical Problem Disappear -- Publications -- Index of Names