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  "body": "\n## Summary\n\nIn graph theory, the **Henson graph** $G_{i}$ is an undirected infinite graph, the unique countable homogeneous graph that does not contain an $i$-vertex [[clique|0BYX1D7C2E]] but that does contain all $K_{i}$-free finite graphs as induced subgraphs. For instance, $G_{3}$ is a triangle-free graph that contains all finite triangle-free graphs.\n",
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