You have chosen 'Necessary Truth' by Willard Quine, 'Counterpart theory and Quant. Modal Logic' by David Lewis and 'Les quaestiones de anima (lectures on the soul)' by Blasius of Parma
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 |