7 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] |
22485 | Non-cognitivists give the conditions of use of moral sentences as facts about the speaker [Foot] |
22486 | The mistake is to think good grounds aren't enough for moral judgement, which also needs feelings [Foot] |
22487 | Moral arguments are grounded in human facts [Foot] |
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] |