You have chosen 'Good and Evil' by Peter Geach, 'The Problem of the Essential Indexical' by John Perry and 'Oxford Commentary on Sentences' by John Duns Scotus
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 |