You have chosen 'The Logic of Decision' by Richard Jeffrey, 'Human Flourishing, Ethics and Liberty' by Gilbert Harman and 'Conjectures and Refutations' by Karl Popper
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 |