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Next: 4.17 Up: More hints and solutions Previous: 2.15

4.16


\begin{proof}
For an edge $e=\{x,y\}$, let
$t(e)$\ be the number of triangles ...
...rt^2/n$.
Altogether this yields the desired lower bound on $t(G)$.
\end{proof}


Jukna 2003-01-15