You have chosen 'On Nature (frags)' by Heraclitus, 'Model Theory for Modal Logic I' by Kit Fine and 'On Nature Itself (De Ipsa Natura)' 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 |