Combining Texts

All the ideas for 'Survival and Identity, with postscript', 'On the Syllogism IV' and 'Letters to Bouvet'

expand these ideas     |    start again     |     specify just one area for these texts

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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]

10. Modality / A. Necessity / 4. De re / De dicto modality

16079

De re modal predicates are ambiguous [Lewis, by Rudder Baker]

23. Ethics / D. Deontological Ethics / 1. Deontology

19407

We want good education and sociability, rather than lots of moral precepts [Leibniz]