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Given the set of natural numbers $N$ is it possible to preform a series of operations that would result in a set with all of the different permutations of pairs? Something like: $$\{\{1,1\},\{1,2\},\{1,3\},...\{2,1\},\{2,2\},...\}$$

Thanks for any help!

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  • $\begingroup$ What do you mean by "a series of operations"? Are you looking for a function that takes a number $n$ and gives the $n^{th}$ sequential pair? $\endgroup$ – Omnomnomnom Jul 26 '13 at 18:36
  • $\begingroup$ Yes, exactly a function. $\endgroup$ – Chris Jul 26 '13 at 18:41
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You can define a new set $ S $ such that

$S=\left \{ \left \{ a, b \right \}\mid a, b \in \mathbb{N} \right \}$

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  • $\begingroup$ That makes sense, thanks a lot! $\endgroup$ – Chris Jul 26 '13 at 18:42

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