You have chosen 'The Laws of Thought' by George Boole, 'Aristotle's Theory of Substance' by Michael V. Wedin and 'Mad Pain and Martian Pain' by David Lewis
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 |