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by pfedak
2791 days ago
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I'm having trouble following the proof of lemma 1, and I can't tell if it's the notation being different from what I'm used to. Is the expression for gamma prime equal to negative the square of the distance between x and y, that is, -<x-y,x-y>? I'm curious, because I would have expected a stronger property to be necessary for the parallelogram structure. |
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