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| Mirrors > Home > NFE Home > Th. List > cuni1 | Unicode version | ||
| Description: Extend class notation to
include the unit union of a class (read:  'unit
     union  | 
| Ref | Expression | 
|---|---|
| cA | 
 | 
| Ref | Expression | 
|---|---|
| cuni1 | 
 | 
| Colors of variables: wff setvar class | 
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