Combining Texts

All the ideas for 'Two Problems of Epistemology', 'On the Syllogism IV' and 'Categories, Classification, Cogn. Anthropology'

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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]

7. Existence / E. Categories / 2. Categorisation

10494

Several words may label a category; one word can name several categories; some categories lack words [Ellen]

14. Science / A. Basis of Science / 6. Falsification

18284

Particulars can be verified or falsified, but general statements can only be falsified (conclusively) [Popper]