You have chosen 'The Origin of the Work of Art' by Martin Heidegger, 'From Stimulus to Science' by Willard Quine and 'On the General Idea of Proof Theory' by Dag Prawitz
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 |