You have chosen 'The Blue and Brown Notebooks' by Ludwig Wittgenstein, 'Introduction to the Philosophy of History' by Georg W.F.Hegel and 'Sources of Knowledge of Mathematics' by Gottlob Frege
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 |