You have chosen 'Symbolic Reasoning' by Hugh MacColl, 'Boole calculus and the Concept script' by Gottlob Frege and 'What is an Emotion?' by William James
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 |