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by kilovoltaire
1404 days ago
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Yeah I agree, it's not 'visually' obvious that the combined entries are all the same. But once I started writing it I had to see where it went :p (Footnotes 2 and 3 at the end explain why the entries all end up the same. And the same argument works for simplices in any number of dimensions—there's always two directions that change the value by +1 and -1, and the rest are all parallel / keep it the same. In higher dimensions there are more ways to be parallel!) |
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