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Syntax Definition bj-cpr1 33859
Description: Syntax for the first class tuple projection. (Contributed by BJ, 6-Apr-2019.)
Hypothesis
Ref Expression
cA class 𝐴
Assertion
Ref Expression
bj-cpr1 class pr1 𝐴

See definition df-bj-pr1 33860 for more information.

Colors of variables: wff setvar class
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