10 ideas
18702 | Names, descriptions and predicates refer to things; without that, language and thought are baffling [Davidson] |
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] |
20180 | A happy and joyous life must largely be a quiet life [Russell] |
20177 | Boredom always involves not being fully occupied [Russell] |
20179 | Happiness involves enduring boredom, and the young should be taught this [Russell] |
20176 | Boredom is an increasingly strong motivating power [Russell] |
20178 | Life is now more interesting, but boredom is more frightening [Russell] |