I am not sure how to start these proofs.(adsbygoogle = window.adsbygoogle || []).push({});

Prove that there is a bijection betweenQandQx X if

a. X =N

B. X = {0,1,...n-1}

We're learning about cardinality, but I was thinking that I have to show that it's one-to-one and onto.

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# Homework Help: Bijections Homework

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