You have chosen 'A Résumé of Metaphysics' by Gottfried Leibniz, 'A Note on the entscheidungsproblem' by Alonzo Church and 'The Barcan Formula and Metaphysics' by Ori Simchen
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 |