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| Mirrors > Home > ILE Home > Th. List > Mathboxes > ax-bdel | Unicode version | ||
| Description: An atomic formula is bounded (membership predicate). (Contributed by BJ, 3-Oct-2019.) |
| Ref | Expression |
|---|---|
| ax-bdel |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vx |
. . 3
| |
| 2 | vy |
. . 3
| |
| 3 | 1, 2 | wel 2168 |
. 2
|
| 4 | 3 | wbd 15566 |
1
|
| Colors of variables: wff set class |
| This axiom is referenced by: bdcv 15602 bdop 15629 bdcuni 15630 bdcint 15631 bdcriota 15637 bj-nalset 15649 bj-inex 15661 bj-axun2 15669 bj-nnelirr 15707 |
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