cxne - Metamath Proof Explorer

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Syntax Definition cxne 12845

Description: Extend class notation to include the negative of an extended real.

**Hypothesis**
Ref	Expression
cA	class 𝐴

**Assertion**
Ref	Expression
cxne	class -_𝑒𝐴

See definition df-xneg 12848 for more information.

Colors of variables: wff setvar class