You have chosen 'Frege's Theory of Numbers' by Charles Parsons, 'What do powers do when they are not manifested?' by Stathis Psillos and 'The Logical Structure of the World (Aufbau)' by Rudolph Carnap
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| A. | Basis of Science | |
| B. | Scientific Theories | |
| C. | Induction | |
| D. | Explanation |