[FOM] Identity of isomorphic structures

Tom Dunion tom.dunion at gmail.com
Mon Apr 7 19:23:35 EDT 2014

Re: "...the proposal to regard isomorphic structures as identical" I
would be interested to learn how proponents finesse situations where
the structures are the same, but they aren't.  Case in point: 2Z ~ 4Z,
but Z mod 2Z has 2 elements, while Z mod 4Z has 4...( Z here being the
additive group of integers of course)

-- TD

More information about the FOM mailing list