`If two objects have the same logical form, the only distinction between them, apart from their external properties, is that they are different.' Discuss.
Key readings
(Wittgenstein, 1922, §§2-2.063, 3.2-3.5)
(Carruthers, 1990, chs. 9-12)
(Fogelin, 1987, chs. I.3-I.5, III)
Further readings
(Carruthers, 1989, ch. 11)