You have chosen 'Homeostasis, Species and Higher Taxa' by Richard Boyd, 'Must We Believe in Set Theory?' by George Boolos and 'Title, Unity, Authenticity of the 'Categories'' by Michael Frede
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 |