You have chosen 'Causation' by David Lewis, 'On the General Idea of Proof Theory' by Dag Prawitz and 'The Spirit of the Laws (rev. 1757)' by Baron de Montesquieu
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 |