You have chosen 'On the Question of Absolute Undecidability' by Peter Koellner, 'A Completeness Theorem in Modal Logic' by Saul A. Kripke and 'What Numbers Are' by Nicholas P. White
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 |