You have chosen 'On the General Idea of Proof Theory' by Dag Prawitz, 'The Nature and Communication of Substance' by Gottfried Leibniz and 'Three Grades of Modal Involvement' by Willard Quine
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Knowledge Sources, or select a subheading: |
| A. | A Priori Knowledge | |
| B. | Perception | |
| C. | Rationalism | |
| D. | Empiricism | |
| E. | Direct Knowledge |