You have chosen 'Elucidation of some points in E.Schröder' by Gottlob Frege, 'Investigations in the Foundations of Set Theory I' by Ernst Zermelo and 'Existence,Ontological Commitment and Fictions' by Peter van Inwagen
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 |