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SimpleGraph.chromaticNumber_eq_card_iff_forall_surjective
Modification history
2024-03-22 14:25
Mathlib/Combinatorics/SimpleGraph/Coloring.lean
feat(SimpleGraph/Coloring): Surjectivity of graph colorings (#11397) …
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SimpleGraph.chromaticNumber_eq_card_iff_forall_surjective
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