You have chosen 'Two Problems of Epistemology' by Karl Popper, 'Mathematical logic and theory of types' by Bertrand Russell and 'Substitutional Classes and Relations' by Bertrand Russell
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| A. | Wisdom | |
| B. | History of Ideas | |
| C. | History of Philosophy | |
| D. | Nature of Philosophy | |
| E. | Nature of Metaphysics | |
| F. | Analytic Philosophy | |
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| H. | Continental Philosophy |