You have chosen 'The Sign of Four' by Arthur Conan Doyle, 'Inference to the Best Explanation (2nd)' by Peter Lipton and 'Set Theory and related topics (2nd ed)' by Seymour Lipschutz
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Existence, or select a subheading: |
| A. | Nature of Existence | |
| B. | Change in Existence | |
| C. | Structure of Existence | |
| D. | Theories of Reality | |
| E. | Categories |