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Syntax Definition wnff 31764
Description: Syntax for the ℲℲ predicate.
Ref Expression
wph wff 𝜑
vx setvar 𝑥
Ref Expression
wnff wff ℲℲ𝑥𝜑

See definition df-bj-nf 31765 for more information.

Colors of variables: wff setvar class
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