You have chosen 'Letters to Varignon' by Gottfried Leibniz, 'Some Models for Implicature' by H. Paul Grice and 'Commentary on the Metaphysics' by Avicenna (Abu Ibn Sina)
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 |