The Pasch graph is the Levi graph of the Pasch configuration.
The Pasch graph is edge-transitive but not vertex-transitive, but fails to be semisymmetric since it is not regular. Its line graph is the truncated tetrahedral graph.
The Pasch graph is the Levi graph of the Pasch configuration.
The Pasch graph is edge-transitive but not vertex-transitive, but fails to be semisymmetric since it is not regular. Its line graph is the truncated tetrahedral graph.
Weisstein, Eric W. "Pasch Graph." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/PaschGraph.html