You have chosen 'Exigency to Exist in Essences' by Gottfried Leibniz, 'Axiomatic Theories of Truth (2005 ver)' by Volker Halbach and 'On the Nature of Mathematical Reasoning' by Henri Poincar
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 |