You have chosen 'On the Nature of the Universe' by Lucretius, 'Causation and the Manifestation of Powers' by Alexander Bird and 'The Concept of Logical Consequence' by John Etchemendy
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 |