You have chosen 'Frege's Theory of Numbers' by Charles Parsons, 'New System and Explanation of New System' by Gottfried Leibniz and 'Naming and Necessity preface' by Saul A. Kripke
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 |