You have chosen 'Contrib to Critique of Hegel's Phil of Right' by Karl Marx, 'What Price Bivalence?' by Willard Quine and 'On boundary numbers and domains of sets' by Ernst Zermelo
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| A. | A Priori Knowledge | |
| B. | Perception | |
| C. | Rationalism | |
| D. | Empiricism | |
| E. | Direct Knowledge |