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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 7967 | . 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 4574 × cxp 5620 ‘cfv 6490 1st c1st 7931 2nd c2nd 7932 |
| 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 5231 ax-nul 5241 ax-pr 5368 ax-un 7680 |
| 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 3391 df-v 3432 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5517 df-xp 5628 df-rel 5629 df-cnv 5630 df-co 5631 df-dm 5632 df-rn 5633 df-iota 6446 df-fun 6492 df-fv 6498 df-1st 7933 df-2nd 7934 |
| This theorem is referenced by: 1st2ndb 7973 xpopth 7974 eqop 7975 2nd1st 7982 1st2nd 7983 opiota 8003 fimaproj 8076 disjen 9063 xpmapenlem 9073 mapunen 9075 djulf1o 9825 djurf1o 9826 djur 9832 r0weon 9923 enqbreq2 10832 nqereu 10841 lterpq 10882 elreal2 11044 cnref1o 12899 ruclem6 16161 ruclem8 16163 ruclem9 16164 ruclem12 16167 eucalgval 16510 eucalginv 16512 eucalglt 16513 eucalg 16515 qnumdenbi 16672 isstruct2 17077 xpsff1o 17489 comfffval2 17625 comfeq 17630 idfucl 17806 funcpropd 17827 coapm 17996 xpccatid 18112 1stfcl 18121 2ndfcl 18122 1st2ndprf 18130 xpcpropd 18132 evlfcl 18146 hofcl 18183 hofpropd 18191 yonedalem3 18204 gsum2dlem2 19904 mdetunilem9 22563 tx1cn 23552 tx2cn 23553 txdis 23575 txlly 23579 txnlly 23580 txhaus 23590 txkgen 23595 txconn 23632 utop3cls 24194 ucnima 24223 fmucndlem 24233 psmetxrge0 24256 imasdsf1olem 24316 cnheiborlem 24899 caublcls 25254 bcthlem1 25269 bcthlem2 25270 bcthlem4 25272 bcthlem5 25273 ovolfcl 25411 ovolfioo 25412 ovolficc 25413 ovolficcss 25414 ovolfsval 25415 ovolicc2lem1 25462 ovolicc2lem5 25466 ovolfs2 25516 uniiccdif 25523 uniioovol 25524 uniiccvol 25525 uniioombllem2a 25527 uniioombllem2 25528 uniioombllem3a 25529 uniioombllem3 25530 uniioombllem4 25531 uniioombllem5 25532 uniioombllem6 25533 dyadmbl 25545 fsumvma 27164 opreu2reuALT 32535 ofpreima 32727 ofpreima2 32728 elrgspnsubrunlem2 33314 erler 33331 1stmbfm 34410 2ndmbfm 34411 sibfof 34490 oddpwdcv 34505 txsconnlem 35428 mpst123 35728 bj-elid4 37480 bj-elid6 37482 poimirlem4 37936 poimirlem26 37958 poimirlem27 37959 mblfinlem1 37969 mblfinlem2 37970 ftc2nc 38014 heiborlem8 38130 dvhgrp 41544 dvhlveclem 41545 fvovco 45626 dvnprodlem1 46378 volioof 46419 fvvolioof 46421 fvvolicof 46423 etransclem44 46710 ovolval3 47079 ovolval4lem1 47081 ovolval5lem2 47085 ovnovollem1 47088 ovnovollem2 47089 smfpimbor1lem1 47230 rrx2xpref1o 49152 2oppf 49565 eloppf 49566 funcoppc5 49578 swapf2f1oa 49710 swapfida 49713 swapffunca 49717 swapfiso 49718 cofuswapf1 49727 cofuswapf2 49728 fuco2eld2 49747 fuco11b 49770 fuco11bALT 49771 fucoco2 49791 fucofunca 49793 fucolid 49794 fucorid 49795 precofvalALT 49801 reldmlan2 50050 reldmran2 50051 rellan 50056 relran 50057 ranval3 50064 ranrcl4lem 50071 ranup 50075 |
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