12 ideas
3067 | A philosopher should have principles ready for understanding, like a surgeon with instruments [Aurelius] |
17743 | De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki] |
12154 | Are 'word token' and 'word type' different sorts of countable objects, or two ways of counting? [Geach, by Perry] |
3072 | Everything is changing, including yourself and the whole universe [Aurelius] |
8969 | We should abandon absolute identity, confining it to within some category [Geach, by Hawthorne] |
16075 | Denial of absolute identity has drastic implications for logic, semantics and set theory [Wasserman on Geach] |
12152 | Identity is relative. One must not say things are 'the same', but 'the same A as' [Geach] |
16073 | Leibniz's Law is incomplete, since it includes a non-relativized identity predicate [Geach, by Wasserman] |
3066 | Nothing is evil which is according to nature [Aurelius] |
3071 | Justice has no virtue opposed to it, but pleasure has temperance opposed to it [Aurelius] |
3069 | The art of life is more like the wrestler's than the dancer's [Aurelius] |
3065 | Humans are naturally made for co-operation [Aurelius] |