12 ideas
| 13206 | A 'linear or total ordering' must be transitive and satisfy trichotomy [Enderton] |
| 13201 | ∈ says the whole set is in the other; ⊆ says the members of the subset are in the other [Enderton] |
| 13204 | The 'ordered pair' <x,y> is defined to be {{x}, {x,y}} [Enderton] |
| 13200 | Note that {Φ} =/= Φ, because Φ ∈ {Φ} but Φ ∉ Φ [Enderton] |
| 13199 | The empty set may look pointless, but many sets can be constructed from it [Enderton] |
| 13203 | The singleton is defined using the pairing axiom (as {x,x}) [Enderton] |
| 13202 | Fraenkel added Replacement, to give a theory of ordinal numbers [Enderton] |
| 13205 | We can only define functions if Choice tells us which items are involved [Enderton] |
| 7628 | Broad rejects the inferential component of the representative theory [Broad, by Maund] |
| 7522 | A full neural account of qualia will give new epistemic access to them, beyond private experience [Churchlands] |
| 7521 | It is question-begging to assume that qualia are totally simple, hence irreducible [Churchlands] |
| 7523 | The qualia Hard Problem is easy, in comparison with the co-ordination of mental states [Churchlands] |