You have chosen 'Survival and Identity, with postscript' by David Lewis, 'Critique of the Gotha Program' by Karl Marx and 'Tarski on Truth and 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 |