You have chosen 'The Problem of Empty Names' by Marga Reimer, 'Negation' by Edwin D. Mares and 'On the Cosmos (lost)' by Philolaus
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 |