3 ideas
17743 | De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki] |
9413 | An event is a change in or to an object [Lombard, by Mumford] |
20328 | A thing is only seen as art in an 'artworld', which has a theory and a history [Danto] |