You have chosen 'Letters to Edward Stillingfleet' by John Locke, 'Investigations in the Foundations of Set Theory I' by Ernst Zermelo and 'Nominalism and Substitutional Quantifiers' by Ruth Barcan Marcus
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 |