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::Yes, I guess the corrected version is ok. Another, maybe simpler example, would be the open interval (0,1) and the function <math> f(x) = \frac{x}{2} </math>. Since
::the function doesn't have to be bijective, this should also work out. --[[Special:Contributions/84.73.188.172|84.73.188.172]] ([[User talk:84.73.188.172|talk]]) 14:28, 22 January 2011 (UTC)
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