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| Mirrors > Home > ILE Home > Th. List > ralunb | Unicode version | ||
| Description: Restricted quantification over a union. (Contributed by Scott Fenton, 12-Apr-2011.) (Proof shortened by Andrew Salmon, 29-Jun-2011.) |
| Ref | Expression |
|---|---|
| ralunb |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elun 3364 |
. . . . . 6
| |
| 2 | 1 | imbi1i 238 |
. . . . 5
|
| 3 | jaob 718 |
. . . . 5
| |
| 4 | 2, 3 | bitri 184 |
. . . 4
|
| 5 | 4 | albii 1519 |
. . 3
|
| 6 | 19.26 1530 |
. . 3
| |
| 7 | 5, 6 | bitri 184 |
. 2
|
| 8 | df-ral 2527 |
. 2
| |
| 9 | df-ral 2527 |
. . 3
| |
| 10 | df-ral 2527 |
. . 3
| |
| 11 | 9, 10 | anbi12i 460 |
. 2
|
| 12 | 7, 8, 11 | 3bitr4i 212 |
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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2216 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-v 2817 df-un 3218 |
| This theorem is referenced by: ralun 3405 ralprg 3745 raltpg 3747 ralunsn 3907 dcfi 7281 zsupcllemstep 10611 pfxsuffeqwrdeq 11415 rexfiuz 11699 modfsummodlemstep 12168 modfsummod 12169 prmind2 12842 2sqlem10 16124 clwwlkccatlem 16521 clwwlknonex2lem2 16559 nninfsellemdc 16914 nninfsellemsuc 16916 |
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