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Syntax Definition crio 6275
Description: Extend class notation with restricted description binder.
Ref Expression
wph  wff  ph
vx  setvar  x
cA  class  A
Ref Expression
crio  class  ( iota_ x  e.  A  ph )

See definition df-riota 6276 for more information.

Colors of variables: wff setvar class
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