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Mirrors > Home > ILE Home > Th. List > inuni | Unicode version |
Description: The intersection of a union with a class is equal to the union of the intersections of each element of with . (Contributed by FL, 24-Mar-2007.) |
Ref | Expression |
---|---|
inuni |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eluni2 3584 | . . . . 5 | |
2 | 1 | anbi1i 431 | . . . 4 |
3 | elin 3126 | . . . 4 | |
4 | ancom 253 | . . . . . . . 8 | |
5 | r19.41v 2466 | . . . . . . . 8 | |
6 | 4, 5 | bitr4i 176 | . . . . . . 7 |
7 | 6 | exbii 1496 | . . . . . 6 |
8 | rexcom4 2577 | . . . . . 6 | |
9 | 7, 8 | bitr4i 176 | . . . . 5 |
10 | vex 2560 | . . . . . . . . . 10 | |
11 | 10 | inex1 3891 | . . . . . . . . 9 |
12 | eleq2 2101 | . . . . . . . . 9 | |
13 | 11, 12 | ceqsexv 2593 | . . . . . . . 8 |
14 | elin 3126 | . . . . . . . 8 | |
15 | 13, 14 | bitri 173 | . . . . . . 7 |
16 | 15 | rexbii 2331 | . . . . . 6 |
17 | r19.41v 2466 | . . . . . 6 | |
18 | 16, 17 | bitri 173 | . . . . 5 |
19 | 9, 18 | bitri 173 | . . . 4 |
20 | 2, 3, 19 | 3bitr4i 201 | . . 3 |
21 | eluniab 3592 | . . 3 | |
22 | 20, 21 | bitr4i 176 | . 2 |
23 | 22 | eqriv 2037 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 97 wceq 1243 wex 1381 wcel 1393 cab 2026 wrex 2307 cin 2916 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-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 ax-sep 3875 |
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-in 2924 df-uni 3581 |
This theorem is referenced by: (None) |
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