You have chosen 'The Middle Works (15 vols, ed Boydston)' by John Dewey, 'Frege on Extensions from Concepts' by Tyler Burge and 'An Axiomatization of Set Theory' by John von Neumann
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 |