You have chosen 'Exigency to Exist in Essences' by Gottfried Leibniz, 'Parthood and Identity across Time' by Judith (Jarvis) Thomson and 'Counting and the Natural Numbers' by Jeffrey H. Sicha
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Natural Reality, or select a subheading: |
| A. | Classical Physics | |
| B. | Modern Physics | |
| C. | Space | |
| D. | Time | |
| E. | Cosmology | |
| F. | Chemistry | |
| G. | Biology |