Combining Philosophers

All the ideas for Rescher,N/Oppenheim,P, Dougherty,T/Rysiew,P and Augustus De Morgan

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10 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]

9. Objects / C. Structure of Objects / 8. Parts of Objects / c. Wholes from parts

12887

A whole must have one characteristic, an internal relation, and a structure [Rescher/Oppenheim]

11. Knowledge Aims / A. Knowledge / 2. Understanding

19542

It is nonsense that understanding does not involve knowledge; to understand, you must know [Dougherty/Rysiew]

19543

To grasp understanding, we should be more explicit about what needs to be known [Dougherty/Rysiew]

11. Knowledge Aims / A. Knowledge / 7. Knowledge First

19541

Rather than knowledge, our epistemic aim may be mere true belief, or else understanding and wisdom [Dougherty/Rysiew]

13. Knowledge Criteria / A. Justification Problems / 1. Justification / a. Justification issues

19540

Don't confuse justified belief with justified believers [Dougherty/Rysiew]

13. Knowledge Criteria / A. Justification Problems / 1. Justification / b. Need for justification

19539

If knowledge is unanalysable, that makes justification more important [Dougherty/Rysiew]

19. Language / C. Assigning Meanings / 2. Semantics

19538

Entailment is modelled in formal semantics as set inclusion (where 'mammals' contains 'cats') [Dougherty/Rysiew]