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Mirrors > Home > ILE Home > Th. List > elxp5 | Unicode version |
Description: Membership in a cross product requiring no quantifiers or dummy variables. Provides a slightly shorter version of elxp4 5021 when the double intersection does not create class existence problems (caused by int0 3780). (Contributed by NM, 1-Aug-2004.) |
Ref | Expression |
---|---|
elxp5 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elex 2692 | . 2 | |
2 | elex 2692 | . . . 4 | |
3 | elex 2692 | . . . 4 | |
4 | 2, 3 | anim12i 336 | . . 3 |
5 | opexg 4145 | . . . . 5 | |
6 | 5 | adantl 275 | . . . 4 |
7 | eleq1 2200 | . . . . 5 | |
8 | 7 | adantr 274 | . . . 4 |
9 | 6, 8 | mpbird 166 | . . 3 |
10 | 4, 9 | sylan2 284 | . 2 |
11 | elxp 4551 | . . . 4 | |
12 | sneq 3533 | . . . . . . . . . . . . . 14 | |
13 | 12 | rneqd 4763 | . . . . . . . . . . . . 13 |
14 | 13 | unieqd 3742 | . . . . . . . . . . . 12 |
15 | vex 2684 | . . . . . . . . . . . . 13 | |
16 | vex 2684 | . . . . . . . . . . . . 13 | |
17 | 15, 16 | op2nda 5018 | . . . . . . . . . . . 12 |
18 | 14, 17 | syl6req 2187 | . . . . . . . . . . 11 |
19 | 18 | pm4.71ri 389 | . . . . . . . . . 10 |
20 | 19 | anbi1i 453 | . . . . . . . . 9 |
21 | anass 398 | . . . . . . . . 9 | |
22 | 20, 21 | bitri 183 | . . . . . . . 8 |
23 | 22 | exbii 1584 | . . . . . . 7 |
24 | snexg 4103 | . . . . . . . . . 10 | |
25 | rnexg 4799 | . . . . . . . . . 10 | |
26 | 24, 25 | syl 14 | . . . . . . . . 9 |
27 | uniexg 4356 | . . . . . . . . 9 | |
28 | 26, 27 | syl 14 | . . . . . . . 8 |
29 | opeq2 3701 | . . . . . . . . . . 11 | |
30 | 29 | eqeq2d 2149 | . . . . . . . . . 10 |
31 | eleq1 2200 | . . . . . . . . . . 11 | |
32 | 31 | anbi2d 459 | . . . . . . . . . 10 |
33 | 30, 32 | anbi12d 464 | . . . . . . . . 9 |
34 | 33 | ceqsexgv 2809 | . . . . . . . 8 |
35 | 28, 34 | syl 14 | . . . . . . 7 |
36 | 23, 35 | syl5bb 191 | . . . . . 6 |
37 | inteq 3769 | . . . . . . . . . . . 12 | |
38 | 37 | inteqd 3771 | . . . . . . . . . . 11 |
39 | 38 | adantl 275 | . . . . . . . . . 10 |
40 | op1stbg 4395 | . . . . . . . . . . . 12 | |
41 | 15, 28, 40 | sylancr 410 | . . . . . . . . . . 11 |
42 | 41 | adantr 274 | . . . . . . . . . 10 |
43 | 39, 42 | eqtr2d 2171 | . . . . . . . . 9 |
44 | 43 | ex 114 | . . . . . . . 8 |
45 | 44 | pm4.71rd 391 | . . . . . . 7 |
46 | 45 | anbi1d 460 | . . . . . 6 |
47 | anass 398 | . . . . . . 7 | |
48 | 47 | a1i 9 | . . . . . 6 |
49 | 36, 46, 48 | 3bitrd 213 | . . . . 5 |
50 | 49 | exbidv 1797 | . . . 4 |
51 | 11, 50 | syl5bb 191 | . . 3 |
52 | eqvisset 2691 | . . . . . 6 | |
53 | 52 | adantr 274 | . . . . 5 |
54 | 53 | exlimiv 1577 | . . . 4 |
55 | 2 | ad2antrl 481 | . . . 4 |
56 | opeq1 3700 | . . . . . . 7 | |
57 | 56 | eqeq2d 2149 | . . . . . 6 |
58 | eleq1 2200 | . . . . . . 7 | |
59 | 58 | anbi1d 460 | . . . . . 6 |
60 | 57, 59 | anbi12d 464 | . . . . 5 |
61 | 60 | ceqsexgv 2809 | . . . 4 |
62 | 54, 55, 61 | pm5.21nii 693 | . . 3 |
63 | 51, 62 | syl6bb 195 | . 2 |
64 | 1, 10, 63 | pm5.21nii 693 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 103 wb 104 wceq 1331 wex 1468 wcel 1480 cvv 2681 csn 3522 cop 3525 cuni 3731 cint 3766 cxp 4532 crn 4535 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2119 ax-sep 4041 ax-pow 4093 ax-pr 4126 ax-un 4350 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-eu 2000 df-mo 2001 df-clab 2124 df-cleq 2130 df-clel 2133 df-nfc 2268 df-ral 2419 df-rex 2420 df-v 2683 df-un 3070 df-in 3072 df-ss 3079 df-pw 3507 df-sn 3528 df-pr 3529 df-op 3531 df-uni 3732 df-int 3767 df-br 3925 df-opab 3985 df-xp 4540 df-rel 4541 df-cnv 4542 df-dm 4544 df-rn 4545 |
This theorem is referenced by: (None) |
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