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| Mirrors > Home > NFE Home > Th. List > ccompl | GIF version | ||
| Description: Extend class notation to include complement. (read: "the complement of A " ). |
| Ref | Expression |
|---|---|
| cA | class A |
| Ref | Expression |
|---|---|
| ccompl | class ∼ A |
| Colors of variables: wff setvar class |
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