Combining Philosophers

All the ideas for Hermarchus, Augustus De Morgan and J.H. Fetzer

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8 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]

8. Modes of Existence / C. Powers and Dispositions / 6. Dispositions / e. Dispositions as potential

15797

All structures are dispositional, objects are dispositions sets, and events manifest dispositions [Fetzer]

9. Objects / C. Structure of Objects / 1. Structure of an Object

15800

All events and objects are dispositional, and hence all structural properties are dispositional [Fetzer]

25. Social Practice / F. Life Issues / 6. Animal Rights

6005	Animals are dangerous and nourishing, and can't form contracts of justice [Hermarchus, by Sedley]

26. Natural Theory / B. Natural Kinds / 2. Defining Kinds

15798

Kinds are arrangements of dispositions [Fetzer]

26. Natural Theory / D. Laws of Nature / 3. Laws and Generalities

15799

Lawlike sentences are general attributions of disposition to all members of some class [Fetzer]