You have chosen 'The Universe as We Find It' by John Heil, 'On the Algebra of Logic' by Charles Sanders Peirce and 'Mathematics, Science and Language' by Luitzen E.J. Brouwer
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 |