bj-cpr1 - Mathbox for BJ

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Syntax Definition bj-cpr1 32988

Description: Syntax for the first class tuple projection. (Contributed by BJ, 6-Apr-2019.)

**Hypothesis**
Ref	Expression
cA

**Assertion**
Ref	Expression
bj-cpr1	pr₁

See definition df-bj-pr1 32989 for more information.

Colors of variables: wff setvar class