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Syntax Definition coprab 6084
Description: Extend class notation to include class abstraction (class builder) of nested ordered pairs.
Ref Expression
wph  wff  ph
vx  set  x
vy  set  y
vz  set  z
Ref Expression
coprab  class  { <. <.
x ,  y >. ,  z >.  |  ph }

See definition df-oprab 6087 for more information.

Colors of variables: wff set class
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