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| Description: Equality theorem for ordered pairs. |
| Ref | Expression |
|---|---|
| opeq1 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | preq1 2509 |
. . . 4
| |
| 2 | preq2 2510 |
. . . 4
| |
| 3 | 1, 2 | syl 10 |
. . 3
|
| 4 | sneq 2475 |
. . . 4
| |
| 5 | preq1 2509 |
. . . 4
| |
| 6 | 4, 5 | syl 10 |
. . 3
|
| 7 | 3, 6 | eqtrd 1550 |
. 2
|
| 8 | df-op 2474 |
. 2
| |
| 9 | df-op 2474 |
. 2
| |
| 10 | 7, 8, 9 | 3eqtr4g 1574 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: opeq12 2554 opeq1i 2555 opeq1d 2558 breq1 2695 cbvopab1 2748 cbvopab1s 2749 opth 2863 opthgg 2865 eqvinop 2867 opprc1b 2872 opth2 2876 opabid 2887 opelxp 3297 elvvv 3314 opabid2 3360 opelco2g 3380 dfdmf 3397 eldm2g 3400 dfrnf 3435 elimasn 3518 elimasng 3519 cnvopab 3537 elxp4 3585 elxp5 3586 funopg 3652 fcoi1 3752 dmfco 3884 fvco 3885 fvopabn 3897 fvopab5 3904 fvelrn 3926 funfvima3 3968 opreq1 4026 dfoprab2 4050 cbvoprab1 4057 op1stg 4148 op2ndg 4149 fsplit 4204 tfrlem10 4221 tfrlem11 4222 rdglem2 4239 dfec2 4404 fundmen 4569 xpsnen 4576 xpassen 4582 aceq5lem1 4881 aceq5lem4 4884 ltexpq 5234 prlem934a 5291 suppsr 5376 suppsr2 5377 supre 5414 pre-axsup 5445 dffsum 7201 dfisum 7395 drngi 8408 isnvlem 8476 nvi 8480 prj1 10809 fora2 10953 isdivrng 10968 issubsplem1 11058 stoig 11064 isded 11190 dedi 11191 cmppfd 11199 dmrngcmp 11205 iscat 11208 cati 11209 imonclem 11268 hartog 11436 filnetlem1 11763 filnetlem2 11764 filnetlem3 11765 filnetlem4 11766 filnetlem5 11767 ssga 11777 gapmlem 11783 gapm 11784 opabex3 11806 oprabopabf 11807 fsumltisum 11887 fsumleisum 11890 iserzshft2 11892 phtpycolem3 12095 phtpycolem4 12096 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 998 ax-gen 999 ax-8 1000 ax-10 1002 ax-12 1004 ax-17 1007 ax-4 1009 ax-5o 1011 ax-6o 1014 ax-9o 1159 ax-10o 1177 ax-16 1247 ax-11o 1255 ax-ext 1500 |
| This theorem depends on definitions: df-bi 145 df-or 222 df-an 223 df-ex 1017 df-sb 1209 df-clab 1506 df-cleq 1511 df-clel 1514 df-v 1858 df-un 2102 df-sn 2470 df-pr 2471 df-op 2474 |