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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 2177 |
. 2
|
| 4 | 3 | wbd 15748 |
1
|
| Colors of variables: wff set class |
| This axiom is referenced by: bdcv 15784 bdop 15811 bdcuni 15812 bdcint 15813 bdcriota 15819 bj-nalset 15831 bj-inex 15843 bj-axun2 15851 bj-nnelirr 15889 |
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