6 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] |
13965 | Semantics as theory of meaning and semantics as truth-based logical consequence are very different [Soames] |
13964 | Semantic content is a proposition made of sentence constituents (not some set of circumstances) [Soames] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |