You have chosen 'A Completeness Theorem in Modal Logic' by Saul A. Kripke, 'Philosophy of Mathematics' by Stewart Shapiro and 'Letters to Leibniz 1' by Isaac Newton
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 |