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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 2297 |
. . . . . 6
| |
| 2 | 1 | anbi2d 464 |
. . . . 5
|
| 3 | eqidd 2235 |
. . . . . . 7
| |
| 4 | preq2 3774 |
. . . . . . 7
| |
| 5 | 3, 4 | preq12d 3781 |
. . . . . 6
|
| 6 | 5 | eleq2d 2304 |
. . . . 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 2354 |
. 2
|
| 12 | df-op 3703 |
. 2
| |
| 13 | df-op 3703 |
. 2
| |
| 14 | 11, 12, 13 | 3eqtr4g 2292 |
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 2216 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-v 2817 df-un 3218 df-sn 3700 df-pr 3701 df-op 3703 |
| This theorem is referenced by: opeq12 3890 opeq2i 3892 opeq2d 3895 oteq2 3898 oteq3 3899 breq2 4118 cbvopab2 4189 cbvopab2v 4192 opthg 4359 eqvinop 4364 opelopabsb 4383 opelxp 4784 opabid2 4891 elrn2g 4950 opeldm 4964 opeldmg 4966 elrn2 5004 opelresg 5050 iss 5089 elimasng 5135 issref 5150 dmsnopg 5239 cnvsng 5253 elxp4 5255 elxp5 5256 dffun5r 5369 funopg 5391 f1osng 5662 tz6.12f 5704 fsn 5854 fsng 5855 fvsng 5885 oveq2 6066 cbvoprab2 6134 ovg 6201 opabex3d 6323 opabex3 6324 op1stg 6357 op2ndg 6358 oprssdmm 6378 op1steq 6386 dfoprab4f 6400 elmpom 6447 tfrlemibxssdm 6571 tfr1onlembxssdm 6587 tfrcllembxssdm 6600 elixpsn 6983 ixpsnf1o 6984 mapsnend 7065 mapsnen 7066 xpsnen 7085 xpassen 7094 xpf1o 7110 djulclr 7353 djurclr 7354 djulcl 7355 djurcl 7356 djulclb 7359 inl11 7369 djuss 7374 1stinl 7378 2ndinl 7379 1stinr 7380 2ndinr 7381 elreal 8159 ax1rid 8208 fseq1p1m1 10450 pfxval 11391 swrdccatin1 11442 swrdccat3blem 11456 imasaddfnlemg 13578 cnmpt21 15282 djucllem 16698 |
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