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| Mirrors > Home > ILE Home > Th. List > elvvv | Unicode version | ||
| Description: Membership in universal class of ordered triples. (Contributed by NM, 17-Dec-2008.) |
| Ref | Expression |
|---|---|
| elvvv |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elxp 4681 |
. 2
| |
| 2 | anass 401 |
. . . . 5
| |
| 3 | 19.42vv 1926 |
. . . . . 6
| |
| 4 | ancom 266 |
. . . . . . 7
| |
| 5 | 4 | 2exbii 1620 |
. . . . . 6
|
| 6 | vex 2766 |
. . . . . . . 8
| |
| 7 | 6 | biantru 302 |
. . . . . . 7
|
| 8 | elvv 4726 |
. . . . . . . 8
| |
| 9 | 8 | anbi2i 457 |
. . . . . . 7
|
| 10 | 7, 9 | bitr3i 186 |
. . . . . 6
|
| 11 | 3, 5, 10 | 3bitr4ri 213 |
. . . . 5
|
| 12 | 2, 11 | bitr3i 186 |
. . . 4
|
| 13 | 12 | 2exbii 1620 |
. . 3
|
| 14 | exrot4 1705 |
. . . 4
| |
| 15 | excom 1678 |
. . . . . 6
| |
| 16 | vex 2766 |
. . . . . . . . 9
| |
| 17 | vex 2766 |
. . . . . . . . 9
| |
| 18 | 16, 17 | opex 4263 |
. . . . . . . 8
|
| 19 | opeq1 3809 |
. . . . . . . . 9
| |
| 20 | 19 | eqeq2d 2208 |
. . . . . . . 8
|
| 21 | 18, 20 | ceqsexv 2802 |
. . . . . . 7
|
| 22 | 21 | exbii 1619 |
. . . . . 6
|
| 23 | 15, 22 | bitri 184 |
. . . . 5
|
| 24 | 23 | 2exbii 1620 |
. . . 4
|
| 25 | 14, 24 | bitr3i 186 |
. . 3
|
| 26 | 13, 25 | bitri 184 |
. 2
|
| 27 | 1, 26 | bitri 184 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-14 2170 ax-ext 2178 ax-sep 4152 ax-pow 4208 ax-pr 4243 |
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1475 df-sb 1777 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-v 2765 df-un 3161 df-in 3163 df-ss 3170 df-pw 3608 df-sn 3629 df-pr 3630 df-op 3632 df-opab 4096 df-xp 4670 |
| This theorem is referenced by: ssrelrel 4764 dftpos3 6329 |
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