| Mathbox for Alexander van der Vekens |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > ceven | Structured version Visualization version GIF version | ||
| Description: Extend the definition of a class to include the set of even numbers. |
| Ref | Expression |
|---|---|
| ceven | class Even |
| Colors of variables: wff setvar class |
| Copyright terms: Public domain | W3C validator |