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Mirrors > Home > ILE Home > Th. List > elopab | Unicode version |
Description: Membership in a class abstraction of pairs. (Contributed by NM, 24-Mar-1998.) |
Ref | Expression |
---|---|
elopab |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elex 2697 | . 2 | |
2 | vex 2689 | . . . . . 6 | |
3 | vex 2689 | . . . . . 6 | |
4 | 2, 3 | opex 4151 | . . . . 5 |
5 | eleq1 2202 | . . . . 5 | |
6 | 4, 5 | mpbiri 167 | . . . 4 |
7 | 6 | adantr 274 | . . 3 |
8 | 7 | exlimivv 1868 | . 2 |
9 | eqeq1 2146 | . . . . 5 | |
10 | 9 | anbi1d 460 | . . . 4 |
11 | 10 | 2exbidv 1840 | . . 3 |
12 | df-opab 3990 | . . 3 | |
13 | 11, 12 | elab2g 2831 | . 2 |
14 | 1, 8, 13 | pm5.21nii 693 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 103 wb 104 wceq 1331 wex 1468 wcel 1480 cvv 2686 cop 3530 copab 3988 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-pow 4098 ax-pr 4131 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-v 2688 df-un 3075 df-in 3077 df-ss 3084 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-opab 3990 |
This theorem is referenced by: opelopabsbALT 4181 opelopabsb 4182 opelopabt 4184 opelopabga 4185 opabm 4202 iunopab 4203 epelg 4212 elxp 4556 elco 4705 elcnv 4716 dfmpt3 5245 0neqopab 5816 brabvv 5817 opabex3d 6019 opabex3 6020 |
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