You have chosen 'Moral Dilemmas Revisited' by Philippa Foot, 'Unpublished Notebooks 1872-74' by Friedrich Nietzsche and 'To be is to be the value of a variable..' by George Boolos
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| A. | Basis of Science | |
| B. | Scientific Theories | |
| C. | Induction | |
| D. | Explanation |