6 ideas
17833 | The first-order ZF axiomatisation is highly non-categorical [Hallett,M] |
17834 | Non-categoricity reveals a sort of incompleteness, with sets existing that the axioms don't reveal [Hallett,M] |
17837 | Zermelo allows ur-elements, to enable the widespread application of set-theory [Hallett,M] |
17836 | The General Continuum Hypothesis and its negation are both consistent with ZF [Hallett,M] |
19458 | Egoism is the only evil, love the only good; genuine love produces all the other virtues [Feuerbach] |
6011 | There is a remote first god (the Good), and a second god who organises the material world [Numenius, by O'Meara] |