| Metamath Proof Explorer |
< Previous
Next >
Related theorems Unicode version |
| Description: Ordered pair membership in a cross product. |
| Ref | Expression |
|---|---|
| opelxp.1 |
|
| Ref | Expression |
|---|---|
| opelxp |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | opelxp1 3262 |
. 2
| |
| 2 | pm3.26 326 |
. 2
| |
| 3 | opeq1 2541 |
. . . 4
| |
| 4 | 3 | eleq1d 1587 |
. . 3
|
| 5 | eleq1 1581 |
. . . 4
| |
| 6 | 5 | anbi1d 628 |
. . 3
|
| 7 | eqcom 1524 |
. . . . . . . . . . 11
| |
| 8 | visset 1860 |
. . . . . . . . . . . 12
| |
| 9 | visset 1860 |
. . . . . . . . . . . 12
| |
| 10 | opelxp.1 |
. . . . . . . . . . . 12
| |
| 11 | 8, 9, 10 | opth 2843 |
. . . . . . . . . . 11
|
| 12 | 7, 11 | bitri 180 |
. . . . . . . . . 10
|
| 13 | 12 | anbi1i 492 |
. . . . . . . . 9
|
| 14 | an4 517 |
. . . . . . . . 9
| |
| 15 | 13, 14 | bitri 180 |
. . . . . . . 8
|
| 16 | 15 | exbii 1092 |
. . . . . . 7
|
| 17 | 19.42v 1350 |
. . . . . . 7
| |
| 18 | 16, 17 | bitri 180 |
. . . . . 6
|
| 19 | 18 | exbii 1092 |
. . . . 5
|
| 20 | 19.41v 1347 |
. . . . 5
| |
| 21 | 19, 20 | bitri 180 |
. . . 4
|
| 22 | elxp 3259 |
. . . 4
| |
| 23 | df-clel 1518 |
. . . . 5
| |
| 24 | df-clel 1518 |
. . . . 5
| |
| 25 | 23, 24 | anbi12i 493 |
. . . 4
|
| 26 | 21, 22, 25 | 3bitr4i 190 |
. . 3
|
| 27 | 4, 6, 26 | vtoclbg 1895 |
. 2
|
| 28 | 1, 2, 27 | pm5.21nii 691 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: brxp 3272 opelxpg 3273 ralxp 3275 opthprc 3278 elxp3 3281 optocl 3292 relsn 3311 ssxp 3313 xpsspw 3314 inxp 3326 opelres 3429 resiexg 3453 dfima2 3462 cnvxp 3521 xpnz 3523 ssrnres 3538 relssdr 3570 opelf 3697 dff2 3874 dff3 3875 resoprab 4067 oprssdm 4100 curry1 4156 df1st2 4184 df2nd2 4185 brecop 4367 brecop2 4368 ecopoprdm 4370 eceqopreq 4374 xpdom2 4505 xpmapenlem4 4564 xpmapenlem5 4565 mapunen 4567 aceq5lem2 4798 ltpiord 5080 opelcn 5313 opelreal 5314 ruclem13 7614 infxpidmlem5 7648 infxpidmlem7 7650 xplmi 8058 bcthlem32 8115 nvvop 8312 stcat 10538 |
| 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-11 1008 ax-12 1009 ax-13 1010 ax-14 1011 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 ax-sep 2758 ax-pow 2798 ax-pr 2835 |
| This theorem depends on definitions: df-bi 154 df-or 231 df-an 232 df-ex 1022 df-sb 1214 df-eu 1424 df-mo 1425 df-clab 1510 df-cleq 1515 df-clel 1518 df-ne 1634 df-v 1859 df-dif 2100 df-un 2101 df-in 2102 df-ss 2104 df-nul 2332 df-pw 2454 df-sn 2464 df-pr 2465 df-op 2468 df-opab 2722 df-xp 3241 |