You have chosen 'Nominalism and Substitutional Quantifiers' by Ruth Barcan Marcus, 'The Theory of Transfinite Numbers' by George Cantor and 'Of liberty, Fate and God's grace' 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 |