You have chosen 'Function and Concept' by Gottlob Frege, 'True in Theory, but not in Practice' by Immanuel Kant and 'Conceptual truth and metaphysical necessity' by Robert C. Stalnaker
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 |