You have chosen 'The Sign of Four' by Arthur Conan Doyle, 'The Central Questions of Philosophy' by A.J. Ayer and 'Reason, Truth and History' by Hilary Putnam
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 |