You have chosen 'De Ente et Essentia (Being and Essence)' by Thomas Aquinas, 'Aristotle and Descartes on Matter' by Gottfried Leibniz and 'Frege's Concept of Numbers as Objects' by Crispin Wright
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 |