You have chosen 'The Runabout Inference Ticket' by Arthur N. Prior, 'A Priori Knowledge Revisited' by Philip Kitcher and 'Must We Believe in Set Theory?' by George Boolos
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 |