You have chosen 'Presidential Address of Am. Math. Soc' by Oswald Veblen, 'Facts and Propositions' by Frank P. Ramsey and 'Substitutional Classes and Relations' by Bertrand Russell
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 |