You have chosen 'Theory of Science (4 vols)' by Bernard Bolzano, 'Apriority as an Evaluative Notion' by Hartry Field and 'Elements of Mathematical Logic' by Jan Lukasiewicz
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| A. | Wisdom | |
| B. | History of Ideas | |
| C. | History of Philosophy | |
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| E. | Nature of Metaphysics | |
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