You have chosen 'The Sign of Four' by Arthur Conan Doyle, 'Letters to Samuel Masson' by Gottfried Leibniz and 'The Concept of Logical Consequence' by John Etchemendy
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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 | |
| G. | Scientific Philosophy | |
| H. | Continental Philosophy |