You have chosen 'Presidential Address of Am. Math. Soc' by Oswald Veblen, 'The Gathas (seventeen hymns)' by Zoroaster and 'The Coherence Theory of Truth' by James O. Young
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 |