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/sci/ - Science & Math

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>> No.11528082 [View]
File: 339 KB, 1149x1282, Annotation 2020-04-02 224428.png [View same] [iqdb] [saucenao] [google]
11528082

How does one come up with the injective function
[math]f:\mathbb{N} \rightarrow \mathbb{N}\cross\mathbb{N}[\math] shown in the picture?

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