You have chosen 'Two Problems of Epistemology' by Karl Popper, 'Pref to new 'Materialist Theory'' by David M. Armstrong and 'Sources of Knowledge of Mathematics' by Gottlob Frege
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| A. | Classical Physics | |
| B. | Modern Physics | |
| C. | Space | |
| D. | Time | |
| E. | Cosmology | |
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