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| Mirrors > Home > ILE Home > Th. List > Mathboxes > ax-bdn | GIF version | ||
| Description: The negation of a bounded formula is bounded. (Contributed by BJ, 25-Sep-2019.) |
| Ref | Expression |
|---|---|
| bdn.1 | ⊢ BOUNDED 𝜑 |
| Ref | Expression |
|---|---|
| ax-bdn | ⊢ BOUNDED ¬ 𝜑 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | wph | . . 3 wff 𝜑 | |
| 2 | 1 | wn 3 | . 2 wff ¬ 𝜑 |
| 3 | 2 | wbd 17004 | 1 wff BOUNDED ¬ 𝜑 |
| Colors of variables: wff set class |
| This axiom is used by: bdstab 17019 bddc 17020 bdfal 17025 bdnthALT 17027 bdxor 17028 bdne 17045 bdnel 17046 bdcdif 17053 bj-nalset 17087 bj-nnelirr 17145 |
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