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| Mirrors > Home > MPE Home > Th. List > 1st2nd2 | Structured version Visualization version GIF version | ||
| Description: Reconstruction of a member of a Cartesian product in terms of its ordered pair components. (Contributed by NM, 20-Oct-2013.) |
| Ref | Expression |
|---|---|
| 1st2nd2 | ⊢ (𝐴 ∈ (𝐵 × 𝐶) → 𝐴 = 〈(1st ‘𝐴), (2nd ‘𝐴)〉) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elxp6 7977 | . 2 ⊢ (𝐴 ∈ (𝐵 × 𝐶) ↔ (𝐴 = 〈(1st ‘𝐴), (2nd ‘𝐴)〉 ∧ ((1st ‘𝐴) ∈ 𝐵 ∧ (2nd ‘𝐴) ∈ 𝐶))) | |
| 2 | 1 | simplbi 496 | 1 ⊢ (𝐴 ∈ (𝐵 × 𝐶) → 𝐴 = 〈(1st ‘𝐴), (2nd ‘𝐴)〉) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 ∈ wcel 2114 〈cop 4588 × cxp 5630 ‘cfv 6500 1st c1st 7941 2nd c2nd 7942 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5243 ax-nul 5253 ax-pr 5379 ax-un 7690 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rab 3402 df-v 3444 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5527 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-iota 6456 df-fun 6502 df-fv 6508 df-1st 7943 df-2nd 7944 |
| This theorem is referenced by: 1st2ndb 7983 xpopth 7984 eqop 7985 2nd1st 7992 1st2nd 7993 opiota 8013 fimaproj 8087 disjen 9074 xpmapenlem 9084 mapunen 9086 djulf1o 9836 djurf1o 9837 djur 9843 r0weon 9934 enqbreq2 10843 nqereu 10852 lterpq 10893 elreal2 11055 cnref1o 12910 ruclem6 16172 ruclem8 16174 ruclem9 16175 ruclem12 16178 eucalgval 16521 eucalginv 16523 eucalglt 16524 eucalg 16526 qnumdenbi 16683 isstruct2 17088 xpsff1o 17500 comfffval2 17636 comfeq 17641 idfucl 17817 funcpropd 17838 coapm 18007 xpccatid 18123 1stfcl 18132 2ndfcl 18133 1st2ndprf 18141 xpcpropd 18143 evlfcl 18157 hofcl 18194 hofpropd 18202 yonedalem3 18215 gsum2dlem2 19912 mdetunilem9 22576 tx1cn 23565 tx2cn 23566 txdis 23588 txlly 23592 txnlly 23593 txhaus 23603 txkgen 23608 txconn 23645 utop3cls 24207 ucnima 24236 fmucndlem 24246 psmetxrge0 24269 imasdsf1olem 24329 cnheiborlem 24921 caublcls 25277 bcthlem1 25292 bcthlem2 25293 bcthlem4 25295 bcthlem5 25296 ovolfcl 25435 ovolfioo 25436 ovolficc 25437 ovolficcss 25438 ovolfsval 25439 ovolicc2lem1 25486 ovolicc2lem5 25490 ovolfs2 25540 uniiccdif 25547 uniioovol 25548 uniiccvol 25549 uniioombllem2a 25551 uniioombllem2 25552 uniioombllem3a 25553 uniioombllem3 25554 uniioombllem4 25555 uniioombllem5 25556 uniioombllem6 25557 dyadmbl 25569 fsumvma 27192 opreu2reuALT 32562 ofpreima 32754 ofpreima2 32755 elrgspnsubrunlem2 33341 erler 33358 1stmbfm 34437 2ndmbfm 34438 sibfof 34517 oddpwdcv 34532 txsconnlem 35453 mpst123 35753 bj-elid4 37417 bj-elid6 37419 poimirlem4 37869 poimirlem26 37891 poimirlem27 37892 mblfinlem1 37902 mblfinlem2 37903 ftc2nc 37947 heiborlem8 38063 dvhgrp 41477 dvhlveclem 41478 fvovco 45546 dvnprodlem1 46298 volioof 46339 fvvolioof 46341 fvvolicof 46343 etransclem44 46630 ovolval3 46999 ovolval4lem1 47001 ovolval5lem2 47005 ovnovollem1 47008 ovnovollem2 47009 smfpimbor1lem1 47150 rrx2xpref1o 49072 2oppf 49485 eloppf 49486 funcoppc5 49498 swapf2f1oa 49630 swapfida 49633 swapffunca 49637 swapfiso 49638 cofuswapf1 49647 cofuswapf2 49648 fuco2eld2 49667 fuco11b 49690 fuco11bALT 49691 fucoco2 49711 fucofunca 49713 fucolid 49714 fucorid 49715 precofvalALT 49721 reldmlan2 49970 reldmran2 49971 rellan 49976 relran 49977 ranval3 49984 ranrcl4lem 49991 ranup 49995 |
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