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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 7976 | . 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 4573 × cxp 5629 ‘cfv 6498 1st c1st 7940 2nd c2nd 7941 |
| 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 2708 ax-sep 5231 ax-nul 5241 ax-pr 5375 ax-un 7689 |
| 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 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3062 df-rab 3390 df-v 3431 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-nul 4274 df-if 4467 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-opab 5148 df-mpt 5167 df-id 5526 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-iota 6454 df-fun 6500 df-fv 6506 df-1st 7942 df-2nd 7943 |
| This theorem is referenced by: 1st2ndb 7982 xpopth 7983 eqop 7984 2nd1st 7991 1st2nd 7992 opiota 8012 fimaproj 8085 disjen 9072 xpmapenlem 9082 mapunen 9084 djulf1o 9836 djurf1o 9837 djur 9843 r0weon 9934 enqbreq2 10843 nqereu 10852 lterpq 10893 elreal2 11055 cnref1o 12935 ruclem6 16202 ruclem8 16204 ruclem9 16205 ruclem12 16208 eucalgval 16551 eucalginv 16553 eucalglt 16554 eucalg 16556 qnumdenbi 16714 isstruct2 17119 xpsff1o 17531 comfffval2 17667 comfeq 17672 idfucl 17848 funcpropd 17869 coapm 18038 xpccatid 18154 1stfcl 18163 2ndfcl 18164 1st2ndprf 18172 xpcpropd 18174 evlfcl 18188 hofcl 18225 hofpropd 18233 yonedalem3 18246 gsum2dlem2 19946 mdetunilem9 22585 tx1cn 23574 tx2cn 23575 txdis 23597 txlly 23601 txnlly 23602 txhaus 23612 txkgen 23617 txconn 23654 utop3cls 24216 ucnima 24245 fmucndlem 24255 psmetxrge0 24278 imasdsf1olem 24338 cnheiborlem 24921 caublcls 25276 bcthlem1 25291 bcthlem2 25292 bcthlem4 25294 bcthlem5 25295 ovolfcl 25433 ovolfioo 25434 ovolficc 25435 ovolficcss 25436 ovolfsval 25437 ovolicc2lem1 25484 ovolicc2lem5 25488 ovolfs2 25538 uniiccdif 25545 uniioovol 25546 uniiccvol 25547 uniioombllem2a 25549 uniioombllem2 25550 uniioombllem3a 25551 uniioombllem3 25552 uniioombllem4 25553 uniioombllem5 25554 uniioombllem6 25555 dyadmbl 25567 fsumvma 27176 opreu2reuALT 32546 ofpreima 32738 ofpreima2 32739 elrgspnsubrunlem2 33309 erler 33326 1stmbfm 34404 2ndmbfm 34405 sibfof 34484 oddpwdcv 34499 txsconnlem 35422 mpst123 35722 bj-elid4 37482 bj-elid6 37484 poimirlem4 37945 poimirlem26 37967 poimirlem27 37968 mblfinlem1 37978 mblfinlem2 37979 ftc2nc 38023 heiborlem8 38139 dvhgrp 41553 dvhlveclem 41554 fvovco 45623 dvnprodlem1 46374 volioof 46415 fvvolioof 46417 fvvolicof 46419 etransclem44 46706 ovolval3 47075 ovolval4lem1 47077 ovolval5lem2 47081 ovnovollem1 47084 ovnovollem2 47085 smfpimbor1lem1 47226 rrx2xpref1o 49194 2oppf 49607 eloppf 49608 funcoppc5 49620 swapf2f1oa 49752 swapfida 49755 swapffunca 49759 swapfiso 49760 cofuswapf1 49769 cofuswapf2 49770 fuco2eld2 49789 fuco11b 49812 fuco11bALT 49813 fucoco2 49833 fucofunca 49835 fucolid 49836 fucorid 49837 precofvalALT 49843 reldmlan2 50092 reldmran2 50093 rellan 50098 relran 50099 ranval3 50106 ranrcl4lem 50113 ranup 50117 |
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