You have chosen 'Writing the Book of the World' by Theodore Sider, 'The Concept of Truth for Formalized Languages' by Alfred Tarski and 'Dialogue on human freedom and origin of evil' by Gottfried Leibniz
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 |