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| Description: Lemma for aceq5 3563. |
| Ref | Expression |
|---|---|
| aceq5lem.1 |
|
| Ref | Expression |
|---|---|
| aceq5lem2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | aceq5lem.1 |
. . . 4
| |
| 2 | 1 | unieqi 1928 |
. . 3
|
| 3 | 2 | eleq2i 1153 |
. 2
|
| 4 | eluniab 1926 |
. . 3
| |
| 5 | r19.42v 1303 |
. . . . 5
| |
| 6 | anass 336 |
. . . . 5
| |
| 7 | 5, 6 | bitr2 152 |
. . . 4
|
| 8 | 7 | biex 733 |
. . 3
|
| 9 | rexcom4 1361 |
. . . 4
| |
| 10 | df-rex 1206 |
. . . 4
| |
| 11 | 9, 10 | bitr3 153 |
. . 3
|
| 12 | 4, 8, 11 | 3bitr 155 |
. 2
|
| 13 | ancom 333 |
. . . . . . . . 9
| |
| 14 | n0i 1712 |
. . . . . . . . . . 11
| |
| 15 | 14 | pm4.71i 483 |
. . . . . . . . . 10
|
| 16 | 15 | anbi2i 367 |
. . . . . . . . 9
|
| 17 | 13, 16 | bitr4 154 |
. . . . . . . 8
|
| 18 | 17 | biex 733 |
. . . . . . 7
|
| 19 | snex 1859 |
. . . . . . . . 9
| |
| 20 | visset 1350 |
. . . . . . . . 9
| |
| 21 | 19, 20 | xpex 2488 |
. . . . . . . 8
|
| 22 | eleq2 1150 |
. . . . . . . 8
| |
| 23 | 21, 22 | ceqsexv 1371 |
. . . . . . 7
|
| 24 | 18, 23 | bitr 151 |
. . . . . 6
|
| 25 | 24 | anbi2i 367 |
. . . . 5
|
| 26 | visset 1350 |
. . . . . . . 8
| |
| 27 | 26 | opelxp 2452 |
. . . . . . 7
|
| 28 | elsn 1820 |
. . . . . . . . 9
| |
| 29 | cleqcom 1103 |
. . . . . . . . 9
| |
| 30 | 28, 29 | bitr 151 |
. . . . . . . 8
|
| 31 | 30 | anbi1i 368 |
. . . . . . 7
|
| 32 | 27, 31 | bitr 151 |
. . . . . 6
|
| 33 | 32 | anbi2i 367 |
. . . . 5
|
| 34 | an12 370 |
. . . . 5
| |
| 35 | 25, 33, 34 | 3bitr 155 |
. . . 4
|
| 36 | 35 | biex 733 |
. . 3
|
| 37 | visset 1350 |
. . . 4
| |
| 38 | eleq1 1149 |
. . . . 5
| |
| 39 | eleq2 1150 |
. . . . 5
| |
| 40 | 38, 39 | anbi12d 476 |
. . . 4
|
| 41 | 37, 40 | ceqsexv 1371 |
. . 3
|
| 42 | 36, 41 | bitr 151 |
. 2
|
| 43 | 3, 12, 42 | 3bitr 155 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: aceq5lem5 3562 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-6 675 ax-7 676 ax-gen 677 ax-8 798 ax-9 799 ax-10 800 ax-11 801 ax-12 802 ax-13 804 ax-14 805 ax-16 922 ax-17 925 ax-ext 1074 ax-rep 1075 ax-un 1076 ax-pow 1077 |
| This theorem depends on definitions: df-bi 128 df-or 197 df-an 198 df-ex 679 df-sb 853 df-clab 1093 df-cleq 1097 df-clel 1099 df-rex 1206 df-v 1349 df-dif 1489 df-un 1490 df-in 1491 df-ss 1492 df-nul 1708 df-pw 1799 df-sn 1811 df-pr 1812 df-op 1815 df-uni 1920 df-opab 2098 df-xp 2424 df-rel 2425 |