Combining Philosophers

All the ideas for Euripides, Bill Brewer and Augustus De Morgan

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


5 ideas

1. Philosophy / D. Nature of Philosophy / 7. Despair over Philosophy
Our ancient beliefs can never be overthrown by subtle arguments [Euripides]
5. Theory of Logic / E. Structures of Logic / 6. Relations in Logic
De Morgan started the study of relations and their properties [De Morgan, by Walicki]
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
De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki]
13. Knowledge Criteria / B. Internal Justification / 4. Foundationalism / c. Empirical foundations
Sense experiences must have conceptual content, since they are possible reasons for judgements [Brewer,B]