6 ideas
21699 | Russell offered a paraphrase of definite description, to avoid the commitment to objects [Quine] |
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] |
21700 | Taking sentences as the unit of meaning makes useful paraphrasing possible [Quine] |
21701 | Knowing a word is knowing the meanings of sentences which contain it [Quine] |
18671 | The ground for an attitude is not a thing's 'goodness', but its concrete characteristics [Ewing] |