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Hypergraph.isLoop_iff_mem_edgeSet_and_singleton
Modification history
2026-06-12 00:00
Mathlib/Combinatorics/Hypergraph/Basic.lean
feat(Combinatorics): define undirected hypergraphs (#28613) …
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Hypergraph.isLoop_iff_mem_edgeSet_and_singleton
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