You have chosen 'New Proof of Possibility of Well-Ordering' by Ernst Zermelo, 'Against the Professors (six books)' by Sextus Empiricus and 'Barcan Formulae' by Koen Vervloesem
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 |