Combining Texts

All the ideas for 'Necessary Existents', 'Amphitheatrum' and 'On the Syllogism IV'

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4 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]

19. Language / D. Propositions / 3. Concrete Propositions

19216

Propositions (such as 'that dog is barking') only exist if their items exist [Williamson]

26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / b. Prime matter

16591

Prime matter is nothing but its parts [Vanini]