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December 21, 2014

December 21, 2014

Posted by **Wayne** on Sunday, February 3, 2008 at 9:38pm.

A U A'

- Math -
**Reiny**, Monday, February 4, 2008 at 8:03amA U A' =

**U**, the universal set

eg. suppose A is the set of all German books in the set of all books

Then A' is the set of all non-German books

so AUA' would the all German books OR all non-German books, which would be the set of all books

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