You have chosen 'How Things Might Have Been' by Penelope Mackie, 'Why the Universe Exists' by New Scientist writers and 'Identity, Essence and Indiscernibility' by Stephen Yablo
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 |