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| Description: Membership in universal class of ordered triples. |
| Ref | Expression |
|---|---|
| elvvv |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elxp 4018 |
. 2
| |
| 2 | anass 487 |
. . . 4
| |
| 3 | elvv 4053 |
. . . . . 6
| |
| 4 | 3 | anbi2i 538 |
. . . . 5
|
| 5 | visset 2295 |
. . . . . 6
| |
| 6 | 5 | biantru 793 |
. . . . 5
|
| 7 | ancom 482 |
. . . . . . 7
| |
| 8 | 7 | 2exbii 1399 |
. . . . . 6
|
| 9 | 19.42vv 1690 |
. . . . . 6
| |
| 10 | 8, 9 | bitr2i 191 |
. . . . 5
|
| 11 | 4, 6, 10 | 3bitr3i 198 |
. . . 4
|
| 12 | 2, 11 | bitr3i 192 |
. . 3
|
| 13 | 12 | 2exbii 1399 |
. 2
|
| 14 | exrot4 1454 |
. . 3
| |
| 15 | excom 1393 |
. . . . 5
| |
| 16 | opex 3527 |
. . . . . . 7
| |
| 17 | opeq1 3158 |
. . . . . . . 8
| |
| 18 | 17 | eqeq2d 1895 |
. . . . . . 7
|
| 19 | 16, 18 | ceqsexv 2325 |
. . . . . 6
|
| 20 | 19 | exbii 1398 |
. . . . 5
|
| 21 | 15, 20 | bitri 190 |
. . . 4
|
| 22 | 21 | 2exbii 1399 |
. . 3
|
| 23 | 14, 22 | bitr3i 192 |
. 2
|
| 24 | 1, 13, 23 | 3bitri 194 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: ssrelrel 4083 ssrelrelOLD 4084 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1304 ax-gen 1305 ax-8 1306 ax-9 1307 ax-10 1308 ax-11 1309 ax-12 1310 ax-14 1312 ax-17 1317 ax-4 1319 ax-5o 1321 ax-6o 1324 ax-9o 1481 ax-10o 1500 ax-16 1580 ax-11o 1588 ax-ext 1865 ax-sep 3438 ax-nul 3445 ax-pow 3481 ax-pr 3524 |
| This theorem depends on definitions: df-bi 164 df-or 241 df-an 242 df-ex 1327 df-sb 1536 df-clab 1872 df-cleq 1877 df-clel 1880 df-ne 2019 df-v 2294 df-dif 2597 df-un 2600 df-in 2603 df-ss 2605 df-nul 2876 df-pw 3035 df-sn 3049 df-pr 3050 df-op 3053 df-opab 3396 df-xp 4000 |