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| Description: Axiom of Quantified Negation. Axiom C5-2 of [Monk2] p. 113. |
| Ref | Expression |
|---|---|
| ax-6 |
        |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | wph |
. . . 4
 | |
| 2 | vx |
. . . 4
 | |
| 3 | 1, 2 | wal 952 |
. . 3
|
| 4 | 3 | wn 2 |
. 2
|
| 5 | 4, 2 | wal 952 |
. 2
|
| 6 | 4, 5 | wi 3 |
1
|
| Colors of variables: wff set class |
| This axiom is referenced by: ax5o 972 ax6o 975 |