4 ideas
9390 | Logic guides thinking, but it isn't a substitute for it [Rumfitt] |
10009 | Substitutional quantification is just a variant of Tarski's account [Wallace, by Baldwin] |
9389 | Vague membership of sets is possible if the set is defined by its concept, not its members [Rumfitt] |
22013 | Subjects distinguish representations, as related both to subject and object [Reinhold] |