You have chosen 'Extrinsic Properties' by David Lewis, 'Essence and Accident' by Irving M. Copi and 'Review of Husserl's 'Phil of Arithmetic'' by Gottlob Frege
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| A. | A Priori Knowledge | |
| B. | Perception | |
| C. | Rationalism | |
| D. | Empiricism | |
| E. | Direct Knowledge |