Combining Texts

Ideas for 'Parmenides', 'On the Syllogism IV' and 'W.V. Quine'

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6 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 / 1. Quantification

8452	Traditionally, universal sentences had existential import, but were later treated as conditional claims [Orenstein]

5. Theory of Logic / G. Quantification / 4. Substitutional Quantification

8475	The substitution view of quantification says a sentence is true when there is a substitution instance [Orenstein]

5. Theory of Logic / L. Paradox / 3. Antinomies

13986

Plato found antinomies in ideas, Kant in space and time, and Bradley in relations [Plato, by Ryle]

14150

Plato's 'Parmenides' is perhaps the best collection of antinomies ever made [Russell on Plato]