You have chosen 'Changes in Events and Changes in Things' by Arthur N. Prior, 'Title, Unity, Authenticity of the 'Categories'' by Michael Frede and 'On the General Idea of Proof Theory' by Dag Prawitz
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Science, or select a subheading: |
| A. | Basis of Science | |
| B. | Scientific Theories | |
| C. | Induction | |
| D. | Explanation |