You have chosen 'Aristotle and Descartes on Matter' by Gottfried Leibniz, 'Symbolic Logic (with Langford)' by C.I. Lewis and 'Tractatus de corpore Christi' by William of Ockham
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 |