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| Mirrors > Home > ILE Home > Th. List > reu8 | Unicode version | ||
| Description: Restricted uniqueness using implicit substitution. (Contributed by NM, 24-Oct-2006.) |
| Ref | Expression |
|---|---|
| rmo4.1 |
|
| Ref | Expression |
|---|---|
| reu8 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rmo4.1 |
. . 3
| |
| 2 | 1 | cbvreuv 2535 |
. 2
|
| 3 | reu6 2730 |
. 2
| |
| 4 | dfbi2 368 |
. . . . 5
| |
| 5 | 4 | ralbii 2330 |
. . . 4
|
| 6 | ancom 253 |
. . . . . 6
| |
| 7 | equcom 1593 |
. . . . . . . . . 10
| |
| 8 | 7 | imbi2i 215 |
. . . . . . . . 9
|
| 9 | 8 | ralbii 2330 |
. . . . . . . 8
|
| 10 | 9 | a1i 9 |
. . . . . . 7
|
| 11 | biimt 230 |
. . . . . . . 8
| |
| 12 | df-ral 2311 |
. . . . . . . . 9
| |
| 13 | bi2.04 237 |
. . . . . . . . . 10
| |
| 14 | 13 | albii 1359 |
. . . . . . . . 9
|
| 15 | vex 2560 |
. . . . . . . . . 10
| |
| 16 | eleq1 2100 |
. . . . . . . . . . . . 13
| |
| 17 | 16, 1 | imbi12d 223 |
. . . . . . . . . . . 12
|
| 18 | 17 | bicomd 129 |
. . . . . . . . . . 11
|
| 19 | 18 | equcoms 1594 |
. . . . . . . . . 10
|
| 20 | 15, 19 | ceqsalv 2584 |
. . . . . . . . 9
|
| 21 | 12, 14, 20 | 3bitrri 196 |
. . . . . . . 8
|
| 22 | 11, 21 | syl6bb 185 |
. . . . . . 7
|
| 23 | 10, 22 | anbi12d 442 |
. . . . . 6
|
| 24 | 6, 23 | syl5bb 181 |
. . . . 5
|
| 25 | r19.26 2441 |
. . . . 5
| |
| 26 | 24, 25 | syl6rbbr 188 |
. . . 4
|
| 27 | 5, 26 | syl5bb 181 |
. . 3
|
| 28 | 27 | rexbiia 2339 |
. 2
|
| 29 | 2, 3, 28 | 3bitri 195 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-io 630 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-10 1396 ax-11 1397 ax-i12 1398 ax-bndl 1399 ax-4 1400 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 |
| This theorem depends on definitions: df-bi 110 df-tru 1246 df-nf 1350 df-sb 1646 df-eu 1903 df-clab 2027 df-cleq 2033 df-clel 2036 df-ral 2311 df-rex 2312 df-reu 2313 df-v 2559 |
| This theorem is referenced by: (None) |
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