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| Description: Equality theorem for ordered pairs. |
| Ref | Expression |
|---|---|
| opeq12 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | opeq1 2541 |
. 2
| |
| 2 | opeq2 2542 |
. 2
| |
| 3 | 1, 2 | sylan9eq 1574 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: opeq12i 2546 cbvopab 2727 opth 2843 copsex2g 2849 opelopabsb 2871 relop 3332 funopg 3604 fsn 3891 fnressn 3894 cbvoprab12 4056 eqop 4162 brecop 4367 th3q 4378 ecoprcom 4380 ecoprass 4381 ecoprdi 4382 xpmapenlem3 4563 mulpipq 5120 1qec 5133 halfpq 5147 prlem934a 5202 addsrpr 5249 addcnsr 5318 ax0id 5346 axcnre 5351 1ded 10753 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1003 ax-gen 1004 ax-8 1005 ax-10 1007 ax-12 1009 ax-17 1012 ax-4 1014 ax-5o 1016 ax-6o 1019 ax-9o 1164 ax-10o 1182 ax-16 1252 ax-11o 1260 ax-ext 1504 |
| This theorem depends on definitions: df-bi 154 df-or 231 df-an 232 df-ex 1022 df-sb 1214 df-clab 1510 df-cleq 1515 df-clel 1518 df-v 1859 df-un 2101 df-sn 2464 df-pr 2465 df-op 2468 |