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Related theorems Unicode version |
| Description: Membership in indexed union. |
| Ref | Expression |
|---|---|
| eliun |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elisset 1864 |
. 2
| |
| 2 | elisset 1864 |
. . . 4
| |
| 3 | 2 | a1i 8 |
. . 3
|
| 4 | 3 | r19.23aiv 1790 |
. 2
|
| 5 | eleq1 1581 |
. . . 4
| |
| 6 | 5 | rexbidv 1711 |
. . 3
|
| 7 | df-iun 2622 |
. . 3
| |
| 8 | 6, 7 | elab2g 1947 |
. 2
|
| 9 | 1, 4, 8 | pm5.21nii 691 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: iunconst 2626 iuniin 2627 ss2iun 2631 iunss 2645 ssiun 2646 ssiun2 2647 iunrab 2650 iunid 2657 iun0 2658 0iun 2659 iunn0 2662 iunin2 2663 iundif2 2665 iindif2 2666 iunxsn 2667 iunxun 2669 iununi 2671 iunpwss 2673 iunpw 2971 cnvuni 3358 dmuni 3376 rnuni 3516 imaiun 3921 eluniima 3924 oalimcl 4252 oaass 4253 omordlim 4266 omlimcl 4267 oeordi 4272 trcl 4707 r1tr 4716 r1ord 4717 jech9.3 4728 rankr1 4736 r1pwcl 4749 cardaleph 4950 infxpidmlem6 7649 infxpidmlem7 7650 cncnplem2 7860 ubthlem5 8617 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1003 ax-gen 1004 ax-8 1005 ax-10 1007 ax-12 1009 ax-17 1012 ax-4 1014 ax-5o 1016 ax-6o 1019 ax-9o 1164 ax-10o 1182 ax-16 1252 ax-11o 1260 ax-ext 1504 |
| This theorem depends on definitions: df-bi 154 df-an 232 df-ex 1022 df-sb 1214 df-clab 1510 df-cleq 1515 df-clel 1518 df-rex 1697 df-v 1859 df-iun 2622 |