You have chosen 'Contributions to Philosophy' by Martin Heidegger, 'Gentzen's Analysis of First-Order Proofs' by Dag Prawitz and 'Philosophies of Mathematics' by A.George / D.J.Velleman
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 |