You have chosen 'On boundary numbers and domains of sets' by Ernst Zermelo, 'Title, Unity, Authenticity of the 'Categories'' by Michael Frede and 'A Specimen of Discoveries' by Gottfried Leibniz
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 |