You have chosen 'Completeness of Axioms of Logic' by Kurt Gödel, 'Actualism and Possible Worlds' by Alvin Plantinga and 'Proof of an External World' by G.E. Moore
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| A. | Classical Physics | |
| B. | Modern Physics | |
| C. | Space | |
| D. | Time | |
| E. | Cosmology | |
| F. | Chemistry | |
| G. | Biology |