4 ideas
6408 | Russell needed three extra axioms to reduce maths to logic: infinity, choice and reducibility [Grayling] |
6414 | Two propositions might seem self-evident, but contradict one another [Grayling] |
20328 | A thing is only seen as art in an 'artworld', which has a theory and a history [Danto] |
168 | To understand morality requires a soul [Plato] |