5 ideas
8920 | Equivalence relations are reflexive, symmetric and transitive, and classify similar objects [Lipschutz] |
15312 | We get the idea of power by abstracting from ropes, magnets and electric shocks [Priestley] |
594 | Speusippus suggested underlying principles for every substance, and ended with a huge list [Speussipus, by Aristotle] |
15311 | Attraction or repulsion are not imparted to matter, but actually constitute it [Priestley] |
2632 | Speusippus said things were governed by some animal force rather than the gods [Speussipus, by Cicero] |