On 10/19/23, Albretch Mueller lbrtchx@gmail.com wrote:
((A: builder)/(B: shoemaker) = X ((D: house)/(D: shoe))
Spiegel actually wrote it as: (A/B) = (X) (D/C), but I think he meant:
((A: builder)/(B: shoemaker) = X ((C: house)/(D: shoe))
because this is the way in which you can come up with the corresponding meaning: "a builder is to a house what a shoemaker is to a pair of shoes": (A/C) ≃ (B/D)
I am more interested in that "X" than in whatever Spiegel had in mind when he wrote up his interpretation of Aristotle's statements on chapter 5 of Aristotle's "Nicomachean Ethics":
https://archive.org/download/nicomacheanethic00arisuoft/nicomacheanethic00ar...
lbrtchx