You have chosen 'General Facts,Phys Necessity, and Metaph of Time' by Peter Forrest, 'Boole calculus and the Concept script' by Gottlob Frege and 'Philosophical Logic' by John P. Burgess
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| A. | A Priori Knowledge | |
| B. | Perception | |
| C. | Rationalism | |
| D. | Empiricism | |
| E. | Direct Knowledge |