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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 7969 | . 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 5622 ‘cfv 6492 1st c1st 7933 2nd c2nd 7934 |
| 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 5370 ax-un 7682 |
| 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 5519 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-iota 6448 df-fun 6494 df-fv 6500 df-1st 7935 df-2nd 7936 |
| This theorem is referenced by: 1st2ndb 7975 xpopth 7976 eqop 7977 2nd1st 7984 1st2nd 7985 opiota 8005 fimaproj 8078 disjen 9065 xpmapenlem 9075 mapunen 9077 djulf1o 9827 djurf1o 9828 djur 9834 r0weon 9925 enqbreq2 10834 nqereu 10843 lterpq 10884 elreal2 11046 cnref1o 12926 ruclem6 16193 ruclem8 16195 ruclem9 16196 ruclem12 16199 eucalgval 16542 eucalginv 16544 eucalglt 16545 eucalg 16547 qnumdenbi 16705 isstruct2 17110 xpsff1o 17522 comfffval2 17658 comfeq 17663 idfucl 17839 funcpropd 17860 coapm 18029 xpccatid 18145 1stfcl 18154 2ndfcl 18155 1st2ndprf 18163 xpcpropd 18165 evlfcl 18179 hofcl 18216 hofpropd 18224 yonedalem3 18237 gsum2dlem2 19937 mdetunilem9 22595 tx1cn 23584 tx2cn 23585 txdis 23607 txlly 23611 txnlly 23612 txhaus 23622 txkgen 23627 txconn 23664 utop3cls 24226 ucnima 24255 fmucndlem 24265 psmetxrge0 24288 imasdsf1olem 24348 cnheiborlem 24931 caublcls 25286 bcthlem1 25301 bcthlem2 25302 bcthlem4 25304 bcthlem5 25305 ovolfcl 25443 ovolfioo 25444 ovolficc 25445 ovolficcss 25446 ovolfsval 25447 ovolicc2lem1 25494 ovolicc2lem5 25498 ovolfs2 25548 uniiccdif 25555 uniioovol 25556 uniiccvol 25557 uniioombllem2a 25559 uniioombllem2 25560 uniioombllem3a 25561 uniioombllem3 25562 uniioombllem4 25563 uniioombllem5 25564 uniioombllem6 25565 dyadmbl 25577 fsumvma 27190 opreu2reuALT 32561 ofpreima 32753 ofpreima2 32754 elrgspnsubrunlem2 33324 erler 33341 1stmbfm 34420 2ndmbfm 34421 sibfof 34500 oddpwdcv 34515 txsconnlem 35438 mpst123 35738 bj-elid4 37498 bj-elid6 37500 poimirlem4 37959 poimirlem26 37981 poimirlem27 37982 mblfinlem1 37992 mblfinlem2 37993 ftc2nc 38037 heiborlem8 38153 dvhgrp 41567 dvhlveclem 41568 fvovco 45641 dvnprodlem1 46392 volioof 46433 fvvolioof 46435 fvvolicof 46437 etransclem44 46724 ovolval3 47093 ovolval4lem1 47095 ovolval5lem2 47099 ovnovollem1 47102 ovnovollem2 47103 smfpimbor1lem1 47244 rrx2xpref1o 49206 2oppf 49619 eloppf 49620 funcoppc5 49632 swapf2f1oa 49764 swapfida 49767 swapffunca 49771 swapfiso 49772 cofuswapf1 49781 cofuswapf2 49782 fuco2eld2 49801 fuco11b 49824 fuco11bALT 49825 fucoco2 49845 fucofunca 49847 fucolid 49848 fucorid 49849 precofvalALT 49855 reldmlan2 50104 reldmran2 50105 rellan 50110 relran 50111 ranval3 50118 ranrcl4lem 50125 ranup 50129 |
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