You have chosen 'Frege's Theory of Numbers' by Charles Parsons, 'Grundlagen (Foundations of Theory of Manifolds)' by George Cantor and 'The Central Questions of Philosophy' by A.J. Ayer
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Thought, or select a subheading: |
| A. | Modes of Thought | |
| B. | Mechanics of Thought | |
| C. | Content | |
| D. | Concepts | |
| E. | Abstraction |