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| Description: Equality theorem for ordered pairs. |
| Ref | Expression |
|---|---|
| opeq12 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | opeq1 3158 |
. 2
| |
| 2 | opeq2 3159 |
. 2
| |
| 3 | 1, 2 | sylan9eq 1948 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: opeq12i 3163 opeq12d 3166 cbvopab 3403 opth 3532 copsex2g 3539 opelopabsbOLD 3565 relop 4113 funopg 4454 fsn 4807 fnressn 4812 cbvoprab12 4926 cbvoprab12OLD 4927 eqopi 5043 brecop 5365 th3q 5376 ecoprcom 5378 ecoprass 5379 ecoprdi 5380 xpmapenlem3 5592 hartog 5693 mulpipq 6207 1qec 6220 halfpq 6234 prlem934a 6289 addsrpr 6336 addcnsr 6405 ax0id 6434 axcnre 6439 on1el3 10412 on1el4 10413 cbcpcp 14504 1ded 15085 hartogOLD 15384 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1304 ax-gen 1305 ax-8 1306 ax-9 1307 ax-10 1308 ax-11 1309 ax-12 1310 ax-17 1317 ax-4 1319 ax-5o 1321 ax-6o 1324 ax-9o 1481 ax-10o 1500 ax-16 1580 ax-11o 1588 ax-ext 1865 |
| This theorem depends on definitions: df-bi 164 df-or 241 df-an 242 df-ex 1327 df-sb 1536 df-clab 1872 df-cleq 1877 df-clel 1880 df-v 2294 df-un 2600 df-sn 3049 df-pr 3050 df-op 3053 |