You have chosen 'Set Theory and related topics (2nd ed)' by Seymour Lipschutz, 'Nature and Observability of Causal Relations' by Curt Ducasse and 'Letters to Samuel Masson' by Gottfried Leibniz
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| A. | Classical Physics | |
| B. | Modern Physics | |
| C. | Space | |
| D. | Time | |
| E. | Cosmology | |
| F. | Chemistry | |
| G. | Biology |