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Syntax Definition bj-csngl 31075
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 31076 for more information.

Colors of variables: wff setvar class
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