You have chosen 'Which Logic is the Right Logic?' by Leslie H. Tharp, 'Substitutional Classes and Relations' by Bertrand Russell and 'On Duties ('De Officiis')' by M. Tullius Cicero
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 |