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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 8021 | . 2 ⊢ (𝐴 ∈ (𝐵 × 𝐶) ↔ (𝐴 = 〈(1st ‘𝐴), (2nd ‘𝐴)〉 ∧ ((1st ‘𝐴) ∈ 𝐵 ∧ (2nd ‘𝐴) ∈ 𝐶))) | |
| 2 | 1 | simplbi 501 | 1 ⊢ (𝐴 ∈ (𝐵 × 𝐶) → 𝐴 = 〈(1st ‘𝐴), (2nd ‘𝐴)〉) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 = wceq 1570 ∈ wcel 2143 〈cop 4596 × cxp 5661 ‘cfv 6538 1st c1st 7985 2nd c2nd 7986 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5258 ax-nul 5270 ax-pr 5406 ax-un 7734 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-rab 3417 df-v 3457 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4489 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-br 5111 df-opab 5175 df-mpt 5194 df-id 5558 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-iota 6494 df-fun 6540 df-fv 6546 df-1st 7987 df-2nd 7988 |
| This theorem is referenced by: 1st2ndb 8027 xpopth 8028 eqop 8029 2nd1st 8036 1st2nd 8037 opiota 8057 fimaproj 8132 disjen 9123 xpmapenlem 9133 mapunen 9135 djulf1o 9899 djurf1o 9900 djur 9906 r0weon 9997 enqbreq2 10906 nqereu 10915 lterpq 10956 elreal2 11118 cnref1o 13010 ruclem6 16292 ruclem8 16294 ruclem9 16295 ruclem12 16298 eucalgval 16641 eucalginv 16643 eucalglt 16644 eucalg 16646 qnumdenbi 16804 isstruct2 17210 xpsff1o 17622 comfffval2 17758 comfeq 17763 idfucl 17939 funcpropd 17960 coapm 18129 xpccatid 18245 1stfcl 18254 2ndfcl 18255 1st2ndprf 18263 xpcpropd 18265 evlfcl 18279 hofcl 18316 hofpropd 18324 yonedalem3 18337 gsum2dlem2 20042 mdetunilem9 22758 tx1cn 23747 tx2cn 23748 txdis 23770 txlly 23774 txnlly 23775 txhaus 23785 txkgen 23790 txconn 23827 utop3cls 24389 ucnima 24418 fmucndlem 24428 psmetxrge0 24451 imasdsf1olem 24511 cnheiborlem 25094 caublcls 25449 bcthlem1 25464 bcthlem2 25465 bcthlem4 25467 bcthlem5 25468 ovolfcl 25606 ovolfioo 25607 ovolficc 25608 ovolficcss 25609 ovolfsval 25610 ovolicc2lem1 25657 ovolicc2lem5 25661 ovolfs2 25711 uniiccdif 25718 uniioovol 25719 uniiccvol 25720 uniioombllem2a 25722 uniioombllem2 25723 uniioombllem3a 25724 uniioombllem3 25725 uniioombllem4 25726 uniioombllem5 25727 uniioombllem6 25728 dyadmbl 25740 fsumvma 27355 opreu2reuALT 32801 ofpreima 32988 ofpreima2 32989 elrgspnsubrunlem2 33546 erler 33563 1stmbfm 34628 2ndmbfm 34629 sibfof 34708 oddpwdcv 34723 txsconnlem 35710 mpst123 36010 bj-elid4 37790 bj-elid6 37792 poimirlem4 38253 poimirlem26 38275 poimirlem27 38276 mblfinlem1 38286 mblfinlem2 38287 ftc2nc 38331 heiborlem8 38447 dvhgrp 41859 dvhlveclem 41860 fvovco 45891 dvnprodlem1 46640 volioof 46681 fvvolioof 46683 fvvolicof 46685 etransclem44 46972 ovolval3 47341 ovolval4lem1 47343 ovolval5lem2 47347 ovnovollem1 47350 ovnovollem2 47351 smfpimbor1lem1 47492 rrx2xpref1o 49475 2oppf 49887 eloppf 49888 funcoppc5 49900 swapf2f1oa 50032 swapfida 50035 swapffunca 50039 swapfiso 50040 cofuswapf1 50049 cofuswapf2 50050 fuco2eld2 50069 fuco11b 50092 fuco11bALT 50093 fucoco2 50113 fucofunca 50115 fucolid 50116 fucorid 50117 precofvalALT 50123 reldmlan2 50372 reldmran2 50373 rellan 50378 relran 50379 ranval3 50386 ranrcl4lem 50393 ranup 50397 |
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