You have chosen 'Investigations into Logical Deduction' by Gerhard Gentzen, 'Set Theory and related topics (2nd ed)' by Seymour Lipschutz and 'Classes and Attributes' by Richard Cartwright
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Knowledge Criteria, or select a subheading: |
| A. | Justification Problems | |
| B. | Internal Justification | |
| C. | External Justification | |
| D. | Scepticism | |
| E. | Relativism |