You have chosen 'Conceptual truth and metaphysical necessity' by Robert C. Stalnaker, 'On the Concept of Number' by David Hilbert and 'The Structure of Science' by Ernest Nagel
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 |