You have chosen 'Primitive Thisness and Primitive Identity' by Robert Merrihew Adams, 'The Concept of Logical Consequence' by Alfred Tarski and 'Letters to De Vries' by Baruch de Spinoza
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 |