You have chosen 'On the Principles of Indiscernibles' by Gottfried Leibniz, 'Apriority as an Evaluative Notion' by Hartry Field and 'Letters to Antoine Arnauld' by Gottfried Leibniz
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| A. | Basis of Science | |
| B. | Scientific Theories | |
| C. | Induction | |
| D. | Explanation |