4 ideas
17750 | The first clear proof of the consistency of the first order predicate logic was in 1928 [Hilbert/Ackermann, by Walicki] |
22745 | Pherecydes said the first principle and element is earth [Pherecydes, by Sext.Empiricus] |
7902 | The Buddha made flowers float in the air, to impress people, and make them listen [Mahavastu] |
5883 | Pherecydes was the first to say that the soul is eternal [Pherecydes, by Cicero] |