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/sci/ - Science & Math

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>> No.10528331 [View]
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10528331

So, this proof is intuitively obvious. But this doesn't feel like a formal proof at all. It feels like something pulled out from the ether. What is the proper justification for "when we sum the degrees of the vertices, edge e gets counted twice"?

Fuck discrete maths and their "intuitive counting" proofs.

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