| Mathbox for BJ |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > Mathboxes > bdvsn | Unicode version | ||
| Description: Equality of a setvar with a singleton of a setvar is a bounded formula. (Contributed by BJ, 16-Oct-2019.) |
| Ref | Expression |
|---|---|
| bdvsn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bdcsn 16233 |
. . . 4
| |
| 2 | 1 | bdss 16227 |
. . 3
|
| 3 | bdcv 16211 |
. . . 4
| |
| 4 | 3 | bdsnss 16236 |
. . 3
|
| 5 | 2, 4 | ax-bdan 16178 |
. 2
|
| 6 | eqss 3239 |
. 2
| |
| 7 | 5, 6 | bd0r 16188 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 ax-bd0 16176 ax-bdan 16178 ax-bdal 16181 ax-bdeq 16183 ax-bdel 16184 ax-bdsb 16185 |
| This theorem depends on definitions: df-bi 117 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-v 2801 df-in 3203 df-ss 3210 df-sn 3672 df-bdc 16204 |
| This theorem is referenced by: bdop 16238 |
| Copyright terms: Public domain | W3C validator |