You have chosen 'Reply to Fourth Objections' by René Descartes, 'Fourfold Root of Princ of Sufficient Reason' by Arthur Schopenhauer and 'Letters to Varignon' by Gottfried Leibniz
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| A. | Relations | |
| B. | Properties | |
| C. | Powers and Dispositions | |
| D. | Universals | |
| E. | Nominalism |