4 ideas
13639 | Quine says higher-order items are intensional, and lack a clearly defined identity relation [Quine, by Shapiro] |
21557 | Russell confused use and mention, and reduced classes to properties, not to language [Quine, by Lackey] |
3178 | A fast machine could pass all behavioural tests with a vast lookup table [Block, by Rey] |
9626 | A structure is an abstraction, focussing on relationships, and ignoring other features [Shapiro] |