You have chosen 'Letters to Jourdain' by Gottlob Frege, 'Fourfold Root of Princ of Sufficient Reason' by Arthur Schopenhauer and 'Categories, Classification, Cogn. Anthropology' by Roy Ellen
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 |