You have chosen 'Changes in Events and Changes in Things' by Arthur N. Prior, 'An Axiomatization of Set Theory' by John von Neumann and 'An Introduction to Modal Logic' by GE Hughes/M Cresswell
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Objects, or select a subheading: |
| A. | Existence of Objects | |
| B. | Unity of Objects | |
| C. | Structure of Objects | |
| D. | Essence of Objects | |
| E. | Objects over Time | |
| F. | Identity among Objects |