You have chosen 'On Sufficient Reason' by Gottfried Leibniz, 'Coherence Theory of Truth and Knowledge' by Donald Davidson and 'The Aim and Structure of Physical Theory' by Pierre Duhem
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 |