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| Mirrors > Home > NFE Home > Th. List > cop | GIF version | ||
| Description: Declare the syntax for an ordered pair. | 
| Ref | Expression | 
|---|---|
| cA | class A | 
| cB | class B | 
| Ref | Expression | 
|---|---|
| cop | class 〈A, B〉 | 
| Colors of variables: wff setvar class | 
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