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| Mirrors > Home > LLPE Home > Th. List > wnf | Structured version | |
| Description: Not-free predicate. Defined by df-nf 335. |
| Ref | Expression |
|---|---|
| wph | wff 𝜑 |
| vx | var x |
| Ref | Expression |
|---|---|
| wnf | wff Ⅎx𝜑 |
| Colors of variables: wff var nilad |
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