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| Mirrors > Home > ILE Home > Th. List > opeq2 | Unicode version | ||
| Description: Equality theorem for ordered pairs. (Contributed by NM, 25-Jun-1998.) (Revised by Mario Carneiro, 26-Apr-2015.) |
| Ref | Expression |
|---|---|
| opeq2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eleq1 2294 |
. . . . . 6
| |
| 2 | 1 | anbi2d 464 |
. . . . 5
|
| 3 | eqidd 2232 |
. . . . . . 7
| |
| 4 | preq2 3753 |
. . . . . . 7
| |
| 5 | 3, 4 | preq12d 3760 |
. . . . . 6
|
| 6 | 5 | eleq2d 2301 |
. . . . 5
|
| 7 | 2, 6 | anbi12d 473 |
. . . 4
|
| 8 | df-3an 1007 |
. . . 4
| |
| 9 | df-3an 1007 |
. . . 4
| |
| 10 | 7, 8, 9 | 3bitr4g 223 |
. . 3
|
| 11 | 10 | abbidv 2350 |
. 2
|
| 12 | df-op 3682 |
. 2
| |
| 13 | df-op 3682 |
. 2
| |
| 14 | 11, 12, 13 | 3eqtr4g 2289 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-v 2805 df-un 3205 df-sn 3679 df-pr 3680 df-op 3682 |
| This theorem is referenced by: opeq12 3869 opeq2i 3871 opeq2d 3874 oteq2 3877 oteq3 3878 breq2 4097 cbvopab2 4168 cbvopab2v 4171 opthg 4336 eqvinop 4341 opelopabsb 4360 opelxp 4761 opabid2 4867 elrn2g 4926 opeldm 4940 opeldmg 4942 elrn2 4980 opelresg 5026 iss 5065 elimasng 5111 issref 5126 dmsnopg 5215 cnvsng 5229 elxp4 5231 elxp5 5232 dffun5r 5345 funopg 5367 f1osng 5635 tz6.12f 5677 fsn 5827 fsng 5828 fvsng 5858 oveq2 6036 cbvoprab2 6104 ovg 6171 opabex3d 6292 opabex3 6293 op1stg 6322 op2ndg 6323 oprssdmm 6343 op1steq 6351 dfoprab4f 6365 elmpom 6412 tfrlemibxssdm 6536 tfr1onlembxssdm 6552 tfrcllembxssdm 6565 elixpsn 6947 ixpsnf1o 6948 mapsnen 7029 xpsnen 7048 xpassen 7057 xpf1o 7073 djulclr 7308 djurclr 7309 djulcl 7310 djurcl 7311 djulclb 7314 inl11 7324 djuss 7329 1stinl 7333 2ndinl 7334 1stinr 7335 2ndinr 7336 elreal 8108 ax1rid 8157 fseq1p1m1 10391 pfxval 11321 swrdccatin1 11372 swrdccat3blem 11386 imasaddfnlemg 13477 cnmpt21 15102 djucllem 16518 |
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