You have chosen 'Abstract of 'The Fourfold Root'' by Arthur Schopenhauer, 'Boole calculus and the Concept script' by Gottlob Frege and 'Truth, Correspondence, Explanation and Knowledge' by Ian McFetridge
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Existence, or select a subheading: |
| A. | Nature of Existence | |
| B. | Change in Existence | |
| C. | Structure of Existence | |
| D. | Theories of Reality | |
| E. | Categories |