You have chosen 'The Sign of Four' by Arthur Conan Doyle, 'Possible Worlds' by Robert C. Stalnaker and 'Our Knowledge of the External World' by Bertrand Russell
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 |