You have chosen 'Investigations in the Foundations of Set Theory I' by Ernst Zermelo, 'The Metaphysics of Causation' by Jonathan Schaffer and 'The Realm of Matter' by George Santayana
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Modality, or select a subheading: |
| A. | Necessity | |
| B. | Possibility | |
| C. | Sources of Modality | |
| D. | Knowledge of Modality | |
| E. | Possible worlds |