You have chosen 'Set Theory and related topics (2nd ed)' by Seymour Lipschutz, 'Reply to Fourth Objections' by Ren Descartes and 'Letters to Mersenne' by Ren Descartes
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| A. | Basis of Science | |
| B. | Scientific Theories | |
| C. | Induction | |
| D. | Explanation |