Combining Philosophers

All the ideas for Gorgias, Peter Klein and Augustus De Morgan

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10 ideas

2. Reason / A. Nature of Reason / 6. Coherence

8833	Why should we prefer coherent beliefs? [Klein,P]

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]

7. Existence / A. Nature of Existence / 3. Being / d. Non-being

18933

Not-Being obviously doesn't exist, and the five modes of Being are all impossible [Gorgias, by Diog. Laertius]

13. Knowledge Criteria / A. Justification Problems / 2. Justification Challenges / a. Agrippa's trilemma

8834	Infinitism avoids a regress, circularity or arbitrariness, by saying warrant just increases [Klein,P]

13. Knowledge Criteria / B. Internal Justification / 4. Foundationalism / e. Pro-foundations

8838	If justification is endless, no link in the chain is ultimately justified [Ginet on Klein,P]

13. Knowledge Criteria / B. Internal Justification / 5. Coherentism / a. Coherence as justification

8839	Reasons acquire warrant through being part of a lengthening series [Klein,P]

19. Language / F. Communication / 1. Rhetoric

9866	Gorgias says rhetoric is the best of arts, because it enslaves without using force [Gorgias, by Plato]

5864	Destroy seriousness with laughter, and laughter with seriousness [Gorgias]