You have chosen 'Sources of Knowledge of Mathematics' by Gottlob Frege, 'The Spirit of the Laws (rev. 1757)' by Baron de Montesquieu and 'Reasons and Persons' by Derek Parfit
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 |