You have chosen 'New System and Explanation of New System' by Gottfried Leibniz, 'An Axiomatization of Set Theory' by John von Neumann and 'Philosophy of Arithmetic' by Edmund Husserl
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 |