You have chosen 'Frege's Theory of Numbers' by Charles Parsons, 'Summa quaestionum super Sententias' by Peter John Olivi and 'What We Owe to Each Other' by Thomas M. Scanlon
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Natural Theory, or select a subheading: |
| A. | Speculations on Nature | |
| B. | Natural Kinds | |
| C. | Causation | |
| D. | Laws of Nature |