| Metamath Proof Explorer |
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Related theorems GIF version |
| Description: Extend class notation with the norm function in a normed complex vector space. In the literature, the norm of A is usually written "|| A ||", but we use function notation to take advantage of our existing theorems about functions. |
| Ref | Expression |
|---|---|
| cnm | class norm |
| Colors of variables: wff set class |