You have chosen 'On Duties ('De Officiis')' by M. Tullius Cicero, 'Counterparts and Identity' by Robert C. Stalnaker and 'The Limits of Contingency' by Gideon Rosen
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 |