You have chosen 'On the General Idea of Proof Theory' by Dag Prawitz, 'A Realist Theory of Science' by Roy Bhaskar and 'The Nature of Universals and Propositions' by G.F. Stout
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 |