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Mirrors > Home > ILE Home > Th. List > uniuni | Unicode version |
Description: Expression for double union that moves union into a class builder. (Contributed by FL, 28-May-2007.) |
Ref | Expression |
---|---|
uniuni |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eluni 3583 | . . . . . 6 | |
2 | 1 | anbi2i 430 | . . . . 5 |
3 | 2 | exbii 1496 | . . . 4 |
4 | 19.42v 1786 | . . . . . . 7 | |
5 | 4 | bicomi 123 | . . . . . 6 |
6 | 5 | exbii 1496 | . . . . 5 |
7 | excom 1554 | . . . . . 6 | |
8 | anass 381 | . . . . . . . 8 | |
9 | ancom 253 | . . . . . . . 8 | |
10 | 8, 9 | bitr3i 175 | . . . . . . 7 |
11 | 10 | 2exbii 1497 | . . . . . 6 |
12 | exdistr 1787 | . . . . . 6 | |
13 | 7, 11, 12 | 3bitri 195 | . . . . 5 |
14 | eluni 3583 | . . . . . . . 8 | |
15 | 14 | bicomi 123 | . . . . . . 7 |
16 | 15 | anbi2i 430 | . . . . . 6 |
17 | 16 | exbii 1496 | . . . . 5 |
18 | 6, 13, 17 | 3bitri 195 | . . . 4 |
19 | vex 2560 | . . . . . . . . . . 11 | |
20 | 19 | uniex 4174 | . . . . . . . . . 10 |
21 | eleq2 2101 | . . . . . . . . . 10 | |
22 | 20, 21 | ceqsexv 2593 | . . . . . . . . 9 |
23 | exancom 1499 | . . . . . . . . 9 | |
24 | 22, 23 | bitr3i 175 | . . . . . . . 8 |
25 | 24 | anbi2i 430 | . . . . . . 7 |
26 | 19.42v 1786 | . . . . . . 7 | |
27 | ancom 253 | . . . . . . . . 9 | |
28 | anass 381 | . . . . . . . . 9 | |
29 | 27, 28 | bitri 173 | . . . . . . . 8 |
30 | 29 | exbii 1496 | . . . . . . 7 |
31 | 25, 26, 30 | 3bitr2i 197 | . . . . . 6 |
32 | 31 | exbii 1496 | . . . . 5 |
33 | excom 1554 | . . . . 5 | |
34 | exdistr 1787 | . . . . . 6 | |
35 | vex 2560 | . . . . . . . . . 10 | |
36 | eqeq1 2046 | . . . . . . . . . . . 12 | |
37 | 36 | anbi1d 438 | . . . . . . . . . . 11 |
38 | 37 | exbidv 1706 | . . . . . . . . . 10 |
39 | 35, 38 | elab 2687 | . . . . . . . . 9 |
40 | 39 | bicomi 123 | . . . . . . . 8 |
41 | 40 | anbi2i 430 | . . . . . . 7 |
42 | 41 | exbii 1496 | . . . . . 6 |
43 | 34, 42 | bitri 173 | . . . . 5 |
44 | 32, 33, 43 | 3bitri 195 | . . . 4 |
45 | 3, 18, 44 | 3bitri 195 | . . 3 |
46 | 45 | abbii 2153 | . 2 |
47 | df-uni 3581 | . 2 | |
48 | df-uni 3581 | . 2 | |
49 | 46, 47, 48 | 3eqtr4i 2070 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 97 wceq 1243 wex 1381 wcel 1393 cab 2026 cuni 3580 |
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-13 1404 ax-14 1405 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 ax-sep 3875 ax-un 4170 |
This theorem depends on definitions: df-bi 110 df-tru 1246 df-nf 1350 df-sb 1646 df-clab 2027 df-cleq 2033 df-clel 2036 df-nfc 2167 df-rex 2312 df-v 2559 df-uni 3581 |
This theorem is referenced by: (None) |
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