You have chosen 'Changes in Events and Changes in Things' by Arthur N. Prior, 'Precepts for Advancing Science and Arts' by Gottfried Leibniz and 'An Axiomatization of Set Theory' by John von Neumann
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 |