You have chosen 'The Principles of Chemistry' by Dmitri Mendeleev, 'The Logical Structure of the World (Aufbau)' by Rudolph Carnap and 'Science without Numbers' by Hartry Field
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 |