You have chosen 'A Realistic Theory of Categories' by Roderick Chisholm, 'On the General Idea of Proof Theory' by Dag Prawitz and 'Nominalism and Realism' by David M. Armstrong
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Natural Reality, or select a subheading: |
| A. | Classical Physics | |
| B. | Modern Physics | |
| C. | Space | |
| D. | Time | |
| E. | Cosmology | |
| F. | Chemistry | |
| G. | Biology |