thanks

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- Oct 4th 2009, 06:26 PMsmith.5954[SOLVED] one-to-one function or not?
thanks

- Oct 4th 2009, 11:02 PMGamma
i think the biggest problem is that function is not well defined.

$\displaystyle f(1/2)=2\cdot 1 + 2=4$ but

$\displaystyle f(2/4)=2 \cdot 2 + 4= 8$

Even if it were well defined, its not injective

$\displaystyle f(3/4)=f(1/8)$ but clearly $\displaystyle 3/4 \not = 1/8$