You have chosen 'Phenomenalism' by A.J. Ayer, 'What do powers do when they are not manifested?' by Stathis Psillos and 'Sources of Knowledge of Mathematics' by Gottlob Frege
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 |