You have chosen 'fragments/reports' by Chrysippus, 'Logical Necessity: Some Issues' by Ian McFetridge 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 Mathematics, or select a subheading: |
| A. | Nature of Mathematics | |
| B. | Foundations for Mathematics | |
| C. | Sources of Mathematics |