You have chosen 'On Plural Reference and Set Theory' by Helen Cartwright, 'The Sign of Four' by Arthur Conan Doyle and 'The Doctrine of Necessity Examined' by Charles Sanders Peirce
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 |