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the claim
The operator product expansion is associative in conformal field theory.
the verdict
COMMON KNOWLEDGE
no citation needed for this one
refutedsupported
the weight of evidence
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The associativity of the operator product expansion is a foundational structural property inherent to the definition of conformal field theory.

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The analysis

The claim states that the operator product expansion is associative in conformal field theory, which is a foundational axiom and defining property of the subject. By definition, consistency and crossing symmetry in CFT require the OPE to be associative. Therefore, this is common knowledge that requires no citation.

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first checked04 Aug 2026
judged → COMMON KNOWLEDGE · 9504 Aug 2026
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