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The global economy isn't a Set because it is impossible to give an exact definition such that one can determine if an entity is a element.  I submit, if carefully read, there is a great deal of ambiguity - to put it nicely - in economic discussion between what are Sets and what are Properties.

And if you don't have Sets you don't have mathematics as a necessarily Valid tool.

by ATinNM on Mon Jun 12th, 2006 at 11:23:28 AM EST
[ Parent ]
So you can use category theory, where you do have a way to talk about the difference between stuff, structure and property.

guaranteed to evoke a violent reaction from police is to challenge their right to "define the situation." --- David Graeber citing Marc Cooper
by Migeru (migeru at eurotrib dot com) on Mon Jun 12th, 2006 at 11:25:19 AM EST
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Explain precisely what you mean here? You're building a model, so obviously you have to draw a line somewhere.
by Colman (colman at eurotrib.com) on Mon Jun 12th, 2006 at 11:42:08 AM EST
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