You have chosen 'Identity in Substances and True Propositions' by Gottfried Leibniz, 'Nature and Observability of Causal Relations' by Curt Ducasse and 'Logic and Conversation' by H. Paul Grice
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 |