Combining Philosophers

All the ideas for Theophrastus, W Kneale / M Kneale and Jonathan Barnes

expand these ideas     |    start again     |     specify just one area for these philosophers

6 ideas

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / f. Axiom of Infinity V
10051 The axiom of infinity is not a truth of logic, and its adoption is an abandonment of logicism [Kneale,W and M]
13. Knowledge Criteria / E. Relativism / 6. Relativism Critique
20921 How can we state relativism of sweet and sour, if they have no determinate nature? [Theophrastus]
18. Thought / E. Abstraction / 8. Abstractionism Critique
9073 Abstraction from an ambiguous concept like 'mole' will define them as the same [Barnes,J]
9074 Abstraction cannot produce the concept of a 'game', as there is no one common feature [Barnes,J]
9072 Defining concepts by abstractions will collect together far too many attributes from entities [Barnes,J]
26. Natural Theory / A. Speculations on Nature / 2. Natural Purpose / c. Purpose denied
5990 Theophrastus doubted whether nature could be explained teleologically [Theophrastus, by Gottschalk]