bj-csngl - Mathbox for BJ

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Syntax Definition bj-csngl 36966

Description: Syntax for singletonization. (Contributed by BJ, 6-Oct-2018.)

**Hypothesis**
Ref	Expression
cA	class 𝐴

**Assertion**
Ref	Expression
bj-csngl	class sngl 𝐴

See definition df-bj-sngl 36967 for more information.

Colors of variables: wff setvar class