You have chosen 'Nominalism and Substitutional Quantifiers' by Ruth Barcan Marcus, 'Les quaestiones de anima (lectures on the soul)' by Blasius of Parma and 'How to Make our Ideas Clear' by Charles Sanders Peirce
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 |