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Consider the Function f(n)=2⌊n/2⌋f ( n ) = 2 \lfloor n / 2 \rfloor

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Consider the function f(n)=2⌊n/2⌋f ( n ) = 2 \lfloor n / 2 \rfloor from Z\mathbf { Z } to Z\mathbf { Z } . Is this function one-to-one? Is this function onto? Justify your answers.

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