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| Mirrors > Home > ILE Home > Th. List > opelxpd | Unicode version | ||
| Description: Ordered pair membership in a Cartesian product, deduction form. (Contributed by Glauco Siliprandi, 3-Mar-2021.) |
| Ref | Expression |
|---|---|
| opelxpd.1 |
|
| opelxpd.2 |
|
| Ref | Expression |
|---|---|
| opelxpd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | opelxpd.1 |
. 2
| |
| 2 | opelxpd.2 |
. 2
| |
| 3 | opelxpi 4808 |
. 2
| |
| 4 | 1, 2, 3 | syl2anc 415 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4251 ax-pow 4313 ax-pr 4348 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-opab 4194 df-xp 4782 |
| This theorem is used by: opabssxpd 4813 elovimad 6132 suplocsrlemb 8179 seqvalcd 10919 ctiunctlemfo 13388 strslfv2d 13453 imasaddfnlemg 13694 imasaddflemg 13696 txcnp 15497 upxp 15498 txcnmpt 15499 uptx 15500 txdis1cn 15504 txlm 15505 lmcn2 15506 txhmeo 15545 comet 15725 txmetcnp 15744 dvaddxxbr 15927 dvmulxxbr 15928 dvcoapbr 15933 mpodvdsmulf1o 16284 wlkelvv 16795 idjudju 17252 |
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