You have chosen 'Reasoning and the Logic of Things' by Charles Sanders Peirce, 'Identity and Existence in Logic' by C. Anthony Anderson and 'On the Syllogism IV' by Augustus De Morgan
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 |