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Mirrors > Home > ILE Home > Th. List > opbrop | Unicode version |
Description: Ordered pair membership in a relation. Special case. (Contributed by NM, 5-Aug-1995.) |
Ref | Expression |
---|---|
opbrop.1 | |
opbrop.2 |
Ref | Expression |
---|---|
opbrop |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | opbrop.1 | . . . 4 | |
2 | 1 | copsex4g 4169 | . . 3 |
3 | 2 | anbi2d 459 | . 2 |
4 | opexg 4150 | . . 3 | |
5 | opexg 4150 | . . 3 | |
6 | eleq1 2202 | . . . . . 6 | |
7 | 6 | anbi1d 460 | . . . . 5 |
8 | eqeq1 2146 | . . . . . . . 8 | |
9 | 8 | anbi1d 460 | . . . . . . 7 |
10 | 9 | anbi1d 460 | . . . . . 6 |
11 | 10 | 4exbidv 1842 | . . . . 5 |
12 | 7, 11 | anbi12d 464 | . . . 4 |
13 | eleq1 2202 | . . . . . 6 | |
14 | 13 | anbi2d 459 | . . . . 5 |
15 | eqeq1 2146 | . . . . . . . 8 | |
16 | 15 | anbi2d 459 | . . . . . . 7 |
17 | 16 | anbi1d 460 | . . . . . 6 |
18 | 17 | 4exbidv 1842 | . . . . 5 |
19 | 14, 18 | anbi12d 464 | . . . 4 |
20 | opbrop.2 | . . . 4 | |
21 | 12, 19, 20 | brabg 4191 | . . 3 |
22 | 4, 5, 21 | syl2an 287 | . 2 |
23 | opelxpi 4571 | . . . 4 | |
24 | opelxpi 4571 | . . . 4 | |
25 | 23, 24 | anim12i 336 | . . 3 |
26 | 25 | biantrurd 303 | . 2 |
27 | 3, 22, 26 | 3bitr4d 219 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wceq 1331 wex 1468 wcel 1480 cvv 2686 cop 3530 class class class wbr 3929 copab 3988 cxp 4537 |
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-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-pow 4098 ax-pr 4131 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ral 2421 df-rex 2422 df-v 2688 df-un 3075 df-in 3077 df-ss 3084 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-br 3930 df-opab 3990 df-xp 4545 |
This theorem is referenced by: ecopoveq 6524 oviec 6535 |
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