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SUPPLEMENTARY MATERIAL (USERS' MATHBOXES)
Mathbox for BJ
Set theory
Tuples of classes
bj-cproj
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df-bj-proj
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Structured
Syntax definition
bj-cproj
Description:
Syntax for the class projection.
(Contributed by
BJ
, 6-Apr-2019)
Ref
Expression
Assertion
bj-cproj
class ( A Proj B )