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| Mirrors > Home > NFE Home > Th. List > cres | GIF version | ||
| Description: Extend the definition of a class to include the restriction of a class. (Read: The restriction of A to B.) |
| Ref | Expression |
|---|---|
| cA | class A |
| cB | class B |
| Ref | Expression |
|---|---|
| cres | class (A ↾ B) |
| Colors of variables: wff setvar class |
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