You have chosen 'Investigations into Logical Deduction' by Gerhard Gentzen, 'On Formally Undecidable Propositions' by Kurt Gdel and 'On Sense and Reference' by Gottlob Frege
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 |