You have chosen 'An Argument for the Identity Theory' by David Lewis, 'An Inquiry into Meaning and Truth' by Bertrand Russell 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 |