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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 2295 |
. . . . . 6
| |
| 2 | 1 | anbi2d 464 |
. . . . 5
|
| 3 | eqidd 2233 |
. . . . . . 7
| |
| 4 | preq2 3769 |
. . . . . . 7
| |
| 5 | 3, 4 | preq12d 3776 |
. . . . . 6
|
| 6 | 5 | eleq2d 2302 |
. . . . 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 2352 |
. 2
|
| 12 | df-op 3698 |
. 2
| |
| 13 | df-op 3698 |
. 2
| |
| 14 | 11, 12, 13 | 3eqtr4g 2290 |
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 2214 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-v 2815 df-un 3215 df-sn 3695 df-pr 3696 df-op 3698 |
| This theorem is referenced by: opeq12 3885 opeq2i 3887 opeq2d 3890 oteq2 3893 oteq3 3894 breq2 4113 cbvopab2 4184 cbvopab2v 4187 opthg 4354 eqvinop 4359 opelopabsb 4378 opelxp 4779 opabid2 4886 elrn2g 4945 opeldm 4959 opeldmg 4961 elrn2 4999 opelresg 5045 iss 5084 elimasng 5130 issref 5145 dmsnopg 5234 cnvsng 5248 elxp4 5250 elxp5 5251 dffun5r 5364 funopg 5386 f1osng 5657 tz6.12f 5699 fsn 5849 fsng 5850 fvsng 5880 oveq2 6058 cbvoprab2 6126 ovg 6193 opabex3d 6314 opabex3 6315 op1stg 6344 op2ndg 6345 oprssdmm 6365 op1steq 6373 dfoprab4f 6387 elmpom 6434 tfrlemibxssdm 6558 tfr1onlembxssdm 6574 tfrcllembxssdm 6587 elixpsn 6970 ixpsnf1o 6971 mapsnend 7052 mapsnen 7053 xpsnen 7072 xpassen 7081 xpf1o 7097 djulclr 7340 djurclr 7341 djulcl 7342 djurcl 7343 djulclb 7346 inl11 7356 djuss 7361 1stinl 7365 2ndinl 7366 1stinr 7367 2ndinr 7368 elreal 8143 ax1rid 8192 fseq1p1m1 10428 pfxval 11366 swrdccatin1 11417 swrdccat3blem 11431 imasaddfnlemg 13527 cnmpt21 15156 djucllem 16572 |
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