5 ideas
15547 | Negative existentials have 'totality facts' as truthmakers [Armstrong, by Lewis] |
6408 | Russell needed three extra axioms to reduce maths to logic: infinity, choice and reducibility [Grayling] |
15542 | All possibilities are recombinations of properties in the actual world [Armstrong, by Lewis] |
6414 | Two propositions might seem self-evident, but contradict one another [Grayling] |
5845 | Niceratus learnt the whole of Homer by heart, as a guide to goodness [Xenophon] |