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| Mirrors > Home > ILE Home > Th. List > acnrcl | Unicode version | ||
| Description: Reverse closure for the choice set predicate. (Contributed by Mario Carneiro, 31-Aug-2015.) |
| Ref | Expression |
|---|---|
| acnrcl |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elex2 2789 |
. . 3
| |
| 2 | abn0m 3487 |
. . . 4
| |
| 3 | simpl 109 |
. . . . 5
| |
| 4 | 3 | exlimiv 1622 |
. . . 4
|
| 5 | 2, 4 | sylbi 121 |
. . 3
|
| 6 | 1, 5 | syl 14 |
. 2
|
| 7 | df-acnm 7294 |
. 2
| |
| 8 | 6, 7 | eleq2s 2301 |
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-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-11 1530 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-ext 2188 |
| This theorem depends on definitions: df-bi 117 df-nf 1485 df-sb 1787 df-clab 2193 df-cleq 2199 df-clel 2202 df-v 2775 df-acnm 7294 |
| This theorem is referenced by: (None) |
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