Combining Philosophers

All the ideas for Lycophron, Augustus De Morgan and Theophrastus

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6 ideas

5. Theory of Logic / E. Structures of Logic / 6. Relations in Logic

17744

De Morgan started the study of relations and their properties [De Morgan, by Walicki]

13501

De Morgan found inferences involving relations, which eluded Aristotle's syllogistic [De Morgan, by Hart,WD]

5. Theory of Logic / G. Quantification / 2. Domain of Quantification

17743

De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki]

13. Knowledge Criteria / A. Justification Problems / 3. Internal or External / a. Pro-internalism

604	Knowledge is mind and knowing 'cohabiting' [Lycophron, by Aristotle]

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]

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]