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Syntax Definition crio 6297
Description: Extend class notation with restricted description binder.
Hypotheses
Ref Expression
wph  wff  ph
vx  set  x
cA  class  A
Assertion
Ref Expression
crio  class  ( iota_ x  e.  A ph )

See definition df-riota 6304 for more information.

Colors of variables: wff set class
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