You have chosen 'Two Problems of Epistemology' by Karl Popper, 'Semantics for Propositional Attitudes' by Jaakko Hintikka and 'Nature and Observability of Causal Relations' by Curt Ducasse
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| A. | Classical Physics | |
| B. | Modern Physics | |
| C. | Space | |
| D. | Time | |
| E. | Cosmology | |
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