You have chosen 'Theory of Knowledge (2nd edn)' by Keith Lehrer, 'Reply to Fourth Objections' by Ren Descartes and 'On the Plurality of Worlds' by David Lewis
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 |