You have chosen 'First-Order Modal Logic' by M Fitting/R Mendelsohn, 'Formal and Material Consequence' by Stephen Read and 'How to Russell a Frege-Church' by David Kaplan
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 |