You have chosen 'The Value of Science' by Henri Poincaré, 'System of Logic' by John Stuart Mill and 'Philosophy and Scientific Image of Man' by Wilfrid Sellars
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| A. | Justification Problems | |
| B. | Internal Justification | |
| C. | External Justification | |
| D. | Scepticism | |
| E. | Relativism |