OAI/Topology/ArtinGroups/Quivers/ExtArrow.lean

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2 declarations, 0 contain sorry, 0 declared as axioms

1. lemma OAI.HarmonicArtin.ReversibleQuiver.Zigzag.SimpleEdge.ext_arrow line 10
2. lemma OAI.HarmonicArtin.ReversibleQuiver.Zigzag.SimpleEdge.reverse_reverse line 16