3 ideas
| 15381 | Dyamic logics model changes between classical states, in action, belief, and computing [Uckelman] |
| 651 | Eurytus showed that numbers underlie things by making pictures of creatures out of pebbles [Eurytus, by Aristotle] |
| 1513 | The Egyptians were the first to say the soul is immortal and reincarnated [Herodotus] |