You have chosen 'The Middle Works (15 vols, ed Boydston)' by John Dewey, 'De modo distinguendi phaenomena' by Gottfried Leibniz and 'Principles of Nature and Grace based on Reason' by Gottfried Leibniz
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 |