You have chosen 'Exigency to Exist in Essences' by Gottfried Leibniz, 'On the Infinite' by David Hilbert and 'Intro to 2nd ed of Principia Mathematica' by Bertrand Russell
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| A. | Classical Physics | |
| B. | Modern Physics | |
| C. | Space | |
| D. | Time | |
| E. | Cosmology | |
| F. | Chemistry | |
| G. | Biology |