4 ideas
8249 | Class membership is not transitive, unlike being part of a part of the whole [Lesniewski, by George/Van Evra] |
22745 | Pherecydes said the first principle and element is earth [Pherecydes, by Sext.Empiricus] |
9425 | Lewis later proposed the axioms at the intersection of the best theories (which may be few) [Mumford on Lewis] |
5883 | Pherecydes was the first to say that the soul is eternal [Pherecydes, by Cicero] |