5 ideas
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] |
17743 | De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki] |
3016 | Even the gods cannot strive against necessity [Pittacus, by Diog. Laertius] |
22110 | Demonstration provides depth of understanding and explanation (rather than foundations) [Kretzmann/Stump] |