You have chosen 'Homeostasis, Species and Higher Taxa' by Richard Boyd, 'On the Question of Absolute Undecidability' by Peter Koellner and 'Commentary on 'Physics'' by Walter Burley
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| A. | A Priori Knowledge | |
| B. | Perception | |
| C. | Rationalism | |
| D. | Empiricism | |
| E. | Direct Knowledge |