You have chosen 'Primitive Thisness and Primitive Identity' by Robert Merrihew Adams, 'The Doctrine of Necessity Examined' by Charles Sanders Peirce and 'Investigations in the Foundations of Set Theory I' by Ernst Zermelo
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 |