You have chosen 'The Character of Physical Law' by Richard P. Feynman, 'The Passions of the Soul' by Ren Descartes and 'Identity in Substances and True Propositions' by Gottfried Leibniz
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 |