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Related theorems Unicode version |
| Description: Membership in a class abstraction of pairs. |
| Ref | Expression |
|---|---|
| elopab |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elisset 1814 |
. 2
| |
| 2 | opex 2778 |
. . . . 5
| |
| 3 | eleq1 1532 |
. . . . 5
| |
| 4 | 2, 3 | mpbiri 194 |
. . . 4
|
| 5 | 4 | adantr 389 |
. . 3
|
| 6 | 5 | 19.23aivv 1295 |
. 2
|
| 7 | eleq1 1532 |
. . 3
| |
| 8 | eqeq1 1479 |
. . . . 5
| |
| 9 | 8 | anbi1d 616 |
. . . 4
|
| 10 | 9 | 2exbidv 1280 |
. . 3
|
| 11 | df-opab 2663 |
. . . 4
| |
| 12 | 11 | abeq2i 1568 |
. . 3
|
| 13 | 7, 10, 12 | vtoclbg 1845 |
. 2
|
| 14 | 1, 6, 13 | pm5.21nii 678 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: hbopab 2808 opelopabg 2813 opabn0 2820 elxp 3198 elcnv 3289 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 961 ax-gen 962 ax-8 963 ax-10 965 ax-11 966 ax-12 967 ax-13 968 ax-14 969 ax-17 970 ax-4 972 ax-5o 974 ax-6o 977 ax-9o 1122 ax-10o 1139 ax-16 1209 ax-11o 1217 ax-ext 1458 ax-sep 2699 ax-pow 2738 ax-pr 2775 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 980 df-sb 1171 df-eu 1381 df-mo 1382 df-clab 1463 df-cleq 1468 df-clel 1471 df-ne 1585 df-v 1809 df-dif 2046 df-un 2047 df-in 2048 df-ss 2050 df-nul 2278 df-pw 2399 df-sn 2409 df-pr 2410 df-op 2413 df-opab 2663 |