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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 8000 | . 2 ⊢ (𝐴 ∈ (𝐵 × 𝐶) ↔ (𝐴 = 〈(1st ‘𝐴), (2nd ‘𝐴)〉 ∧ ((1st ‘𝐴) ∈ 𝐵 ∧ (2nd ‘𝐴) ∈ 𝐶))) | |
| 2 | 1 | simplbi 500 | 1 ⊢ (𝐴 ∈ (𝐵 × 𝐶) → 𝐴 = 〈(1st ‘𝐴), (2nd ‘𝐴)〉) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 = wceq 1559 ∈ wcel 2141 〈cop 4587 × cxp 5643 ‘cfv 6517 1st c1st 7964 2nd c2nd 7965 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5245 ax-nul 5255 ax-pr 5389 ax-un 7714 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3076 df-rex 3086 df-rab 3414 df-v 3455 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4480 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-br 5100 df-opab 5162 df-mpt 5181 df-id 5540 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-rn 5656 df-iota 6473 df-fun 6519 df-fv 6525 df-1st 7966 df-2nd 7967 |
| This theorem is referenced by: 1st2ndb 8006 xpopth 8007 eqop 8008 2nd1st 8015 1st2nd 8016 opiota 8036 fimaproj 8110 disjen 9102 xpmapenlem 9112 mapunen 9114 djulf1o 9867 djurf1o 9868 djur 9874 r0weon 9965 enqbreq2 10875 nqereu 10884 lterpq 10925 elreal2 11087 cnref1o 12983 ruclem6 16250 ruclem8 16252 ruclem9 16253 ruclem12 16256 eucalgval 16599 eucalginv 16601 eucalglt 16602 eucalg 16604 qnumdenbi 16762 isstruct2 17168 xpsff1o 17580 comfffval2 17716 comfeq 17721 idfucl 17897 funcpropd 17918 coapm 18087 xpccatid 18203 1stfcl 18212 2ndfcl 18213 1st2ndprf 18221 xpcpropd 18223 evlfcl 18237 hofcl 18274 hofpropd 18282 yonedalem3 18295 gsum2dlem2 19994 mdetunilem9 22660 tx1cn 23649 tx2cn 23650 txdis 23672 txlly 23676 txnlly 23677 txhaus 23687 txkgen 23692 txconn 23729 utop3cls 24291 ucnima 24320 fmucndlem 24330 psmetxrge0 24353 imasdsf1olem 24413 cnheiborlem 24996 caublcls 25351 bcthlem1 25366 bcthlem2 25367 bcthlem4 25369 bcthlem5 25370 ovolfcl 25508 ovolfioo 25509 ovolficc 25510 ovolficcss 25511 ovolfsval 25512 ovolicc2lem1 25559 ovolicc2lem5 25563 ovolfs2 25613 uniiccdif 25620 uniioovol 25621 uniiccvol 25622 uniioombllem2a 25624 uniioombllem2 25625 uniioombllem3a 25626 uniioombllem3 25627 uniioombllem4 25628 uniioombllem5 25629 uniioombllem6 25630 dyadmbl 25642 fsumvma 27254 opreu2reuALT 32624 ofpreima 32817 ofpreima2 32818 elrgspnsubrunlem2 33390 erler 33407 1stmbfm 34518 2ndmbfm 34519 sibfof 34598 oddpwdcv 34613 txsconnlem 35554 mpst123 35854 bj-elid4 37624 bj-elid6 37626 poimirlem4 38087 poimirlem26 38109 poimirlem27 38110 mblfinlem1 38120 mblfinlem2 38121 ftc2nc 38165 heiborlem8 38281 dvhgrp 41695 dvhlveclem 41696 fvovco 45735 dvnprodlem1 46484 volioof 46525 fvvolioof 46527 fvvolicof 46529 etransclem44 46816 ovolval3 47185 ovolval4lem1 47187 ovolval5lem2 47191 ovnovollem1 47194 ovnovollem2 47195 smfpimbor1lem1 47336 rrx2xpref1o 49304 2oppf 49717 eloppf 49718 funcoppc5 49730 swapf2f1oa 49862 swapfida 49865 swapffunca 49869 swapfiso 49870 cofuswapf1 49879 cofuswapf2 49880 fuco2eld2 49899 fuco11b 49922 fuco11bALT 49923 fucoco2 49943 fucofunca 49945 fucolid 49946 fucorid 49947 precofvalALT 49953 reldmlan2 50202 reldmran2 50203 rellan 50208 relran 50209 ranval3 50216 ranrcl4lem 50223 ranup 50227 |
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