You have chosen 'Frege's Concept of Numbers as Objects' by Crispin Wright, 'Confessio naturae contra atheistas' by Gottfried Leibniz and 'The Concept of Truth for Formalized Languages' by Alfred Tarski
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 |