You have chosen 'The Concept of Logical Consequence' by Alfred Tarski, 'Dialogue on Things and Words' by Gottfried Leibniz and 'On the Plurality of Worlds' by David Lewis
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 |