You have chosen 'Material Beings' by Peter van Inwagen, 'An Axiomatization of Set Theory' by John von Neumann and 'Aristotle and Descartes on Matter' by Gottfried Leibniz
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 |