You have chosen 'On the Principles of Indiscernibles' by Gottfried Leibniz, 'On the General Idea of Proof Theory' by Dag Prawitz and 'Introduction to 'Hippias Minor'' by Robin Waterfield
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 |