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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 4806 |
. 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 4249 ax-pow 4311 ax-pr 4346 |
| 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 4193 df-xp 4780 |
| This theorem is used by: opabssxpd 4811 elovimad 6129 suplocsrlemb 8173 seqvalcd 10898 ctiunctlemfo 13330 strslfv2d 13395 imasaddfnlemg 13635 imasaddflemg 13637 txcnp 15372 upxp 15373 txcnmpt 15374 uptx 15375 txdis1cn 15379 txlm 15380 lmcn2 15381 txhmeo 15420 comet 15600 txmetcnp 15619 dvaddxxbr 15802 dvmulxxbr 15803 dvcoapbr 15808 mpodvdsmulf1o 16104 wlkelvv 16590 |
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