You have chosen 'Theory of Science (4 vols)' by Bernard Bolzano, 'Many, but almost one' by David Lewis and 'Launching Points to the Realm of the Mind' by Porphyry
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 |