bj-cpr1 - Mathbox for BJ

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Syntax Definition bj-cpr1 37001

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 37002 for more information.

Colors of variables: wff setvar class