Thursday 22 October 2015

analysis - Example of bijection from $mathbb{Q} to mathbb{Q} times mathbb{Q}$

What would be an example of bijection between $\mathbb{Q}$ and $\mathbb{Q}\times \mathbb{Q}$.



I can think of one: $x \mapsto (x,x+1)$ Does this work? I am not sure.<

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