You have chosen 'On the True Doctrine (Against Christians)' by Celsus, 'Scientific Explanation and the Causal Structure of the World' by Wesley Salmon and 'The Problem of the Essential Indexical' by John Perry
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 |