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Mirrors > Home > ILE Home > Th. List > eliun | Unicode version |
Description: Membership in indexed union. (Contributed by NM, 3-Sep-2003.) |
Ref | Expression |
---|---|
eliun |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elex 2610 | . 2 | |
2 | elex 2610 | . . 3 | |
3 | 2 | rexlimivw 2473 | . 2 |
4 | eleq1 2141 | . . . 4 | |
5 | 4 | rexbidv 2369 | . . 3 |
6 | df-iun 3680 | . . 3 | |
7 | 5, 6 | elab2g 2740 | . 2 |
8 | 1, 3, 7 | pm5.21nii 652 | 1 |
Colors of variables: wff set class |
Syntax hints: wb 103 wceq 1284 wcel 1433 wrex 2349 cvv 2601 ciun 3678 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 |
This theorem depends on definitions: df-bi 115 df-tru 1287 df-nf 1390 df-sb 1686 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-ral 2353 df-rex 2354 df-v 2603 df-iun 3680 |
This theorem is referenced by: iuncom 3684 iuncom4 3685 iunconstm 3686 iuniin 3688 iunss1 3689 ss2iun 3693 dfiun2g 3710 ssiun 3720 ssiun2 3721 iunab 3724 iun0 3734 0iun 3735 iunn0m 3738 iunin2 3741 iundif2ss 3743 iindif2m 3745 iunxsng 3753 iunun 3755 iunxun 3756 iunxiun 3757 iunpwss 3764 triun 3888 iunpw 4229 xpiundi 4416 xpiundir 4417 iunxpf 4502 cnvuni 4539 dmiun 4562 dmuni 4563 rniun 4754 dfco2 4840 dfco2a 4841 coiun 4850 fun11iun 5167 imaiun 5420 eluniimadm 5425 opabex3d 5768 opabex3 5769 smoiun 5939 tfrlemi14d 5970 |
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