You have chosen 'Boole calculus and the Concept script' by Gottlob Frege, 'Mr Strawson on Logical Theory' by Willard Quine and 'Trees, Terms and Truth' by George Engelbretsen
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 |