You have chosen 'Investigations in the Foundations of Set Theory I' by Ernst Zermelo, 'Logical Foundations of Probability' by Rudolph Carnap and 'Against the Professors (six books)' by Sextus Empiricus
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 |