You have chosen 'Arguments (frags)' by Democritus, 'Tarski on Truth and Logical Consequence' by John Etchemendy and 'Launching Points to the Realm of the Mind' by Porphyry
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| A. | Justification Problems | |
| B. | Internal Justification | |
| C. | External Justification | |
| D. | Scepticism | |
| E. | Relativism |