You have chosen 'Two Problems of Epistemology' by Karl Popper, 'What is Mathematical Truth?' by Hilary Putnam and 'Boole calculus and the Concept script' by Gottlob Frege
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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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