You have chosen 'Set Theory' by Kenneth Kunen, 'The Boundary Stones of Thought' by Ian Rumfitt and 'Categories, Classification, Cogn. Anthropology' by Roy Ellen
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 |