You have chosen 'Introduction to the Philosophy of History' by Georg W.F.Hegel, 'Frege on Extensions from Concepts' by Tyler Burge and 'Reference and Essence (1st edn)' by Nathan Salmon
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 |