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| Mirrors > Home > NFE Home > Th. List > coprab | Unicode version | ||
| Description: Extend class notation to include class abstraction (class builder) of nested ordered pairs. | 
| Ref | Expression | 
|---|---|
| wph | 
 | 
| vx | 
 | 
| vy | 
 | 
| vz | 
 | 
| Ref | Expression | 
|---|---|
| coprab | 
 | 
| Colors of variables: wff setvar class | 
| Copyright terms: Public domain | W3C validator |