If X is an infinite set and x is in X, show that X~X\{x}.
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Originally Posted by Jdg6057 If X is an infinite set and x is in X, show that X~X\{x}. The proof of this statement is entirely dependent on what definition of infinite set is in use.
Last edited by Plato; Sep 21st 2009 at 11:03 AM.
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