You have chosen 'Boole calculus and the Concept script' by Gottlob Frege, 'Virtues and Vices' by Philippa Foot and 'On boundary numbers and domains of sets' by Ernst Zermelo
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Modes of Existence, or select a subheading: |
| A. | Relations | |
| B. | Properties | |
| C. | Powers and Dispositions | |
| D. | Universals | |
| E. | Nominalism |