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WOWII Graph Conjecture 160
Correction of the Formal Conjectures statement to match the historical C₄-free characteristic.
statement correctioncorrected theorem remains openupstream PR #4443
Correction
χ_C₄(G) is one when G contains no four-cycle subgraph and zero otherwise; the cycle need not be induced.
Artifact
This page does not claim the corrected conjecture is solved.