You have chosen 'thirty titles (lost)' by Speussipus, 'Existence,Ontological Commitment and Fictions' by Peter van Inwagen and 'Marx' by Peter Singer
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 |