You have chosen '04: Gospel of St John' by St John, 'Language,Truth and Logic' by A.J. Ayer and 'Investigations in the Foundations of Set Theory I' by Ernst Zermelo
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 |