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Syntax Definition wnff 31764
Description: Syntax for the ℲℲ predicate.
Hypotheses
Ref Expression
wph wff 𝜑
vx setvar 𝑥
Assertion
Ref Expression
wnff wff ℲℲ𝑥𝜑
See definition df-bj-nf 31765 for more information.
Colors of variables: wff setvar class
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