Spahn Segal condition (Rev #1, changes)

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A directed graph is a presheaf

$D:\{1 \stackrel{\overset{d_0}{\leftarrow}}{\underset{d_1}{\leftarrow}} 0\}^{op}\to Set$

Revision on November 1, 2012 at 17:43:21 by Stephan Alexander Spahn?. See the history of this page for a list of all contributions to it.