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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 8008 | . 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 1563 ∈ wcel 2145 〈cop 4591 × cxp 5650 ‘cfv 6525 1st c1st 7972 2nd c2nd 7973 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-sep 5251 ax-nul 5261 ax-pr 5395 ax-un 7722 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-ral 3080 df-rex 3090 df-rab 3418 df-v 3459 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-nul 4289 df-if 4484 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4869 df-br 5106 df-opab 5168 df-mpt 5187 df-id 5547 df-xp 5658 df-rel 5659 df-cnv 5660 df-co 5661 df-dm 5662 df-rn 5663 df-iota 6481 df-fun 6527 df-fv 6533 df-1st 7974 df-2nd 7975 |
| This theorem is referenced by: 1st2ndb 8014 xpopth 8015 eqop 8016 2nd1st 8023 1st2nd 8024 opiota 8044 fimaproj 8119 disjen 9110 xpmapenlem 9120 mapunen 9122 djulf1o 9886 djurf1o 9887 djur 9893 r0weon 9984 enqbreq2 10893 nqereu 10902 lterpq 10943 elreal2 11105 cnref1o 13000 ruclem6 16281 ruclem8 16283 ruclem9 16284 ruclem12 16287 eucalgval 16630 eucalginv 16632 eucalglt 16633 eucalg 16635 qnumdenbi 16793 isstruct2 17199 xpsff1o 17611 comfffval2 17747 comfeq 17752 idfucl 17928 funcpropd 17949 coapm 18118 xpccatid 18234 1stfcl 18243 2ndfcl 18244 1st2ndprf 18252 xpcpropd 18254 evlfcl 18268 hofcl 18305 hofpropd 18313 yonedalem3 18326 gsum2dlem2 20032 mdetunilem9 22738 tx1cn 23727 tx2cn 23728 txdis 23750 txlly 23754 txnlly 23755 txhaus 23765 txkgen 23770 txconn 23807 utop3cls 24369 ucnima 24398 fmucndlem 24408 psmetxrge0 24431 imasdsf1olem 24491 cnheiborlem 25074 caublcls 25429 bcthlem1 25444 bcthlem2 25445 bcthlem4 25447 bcthlem5 25448 ovolfcl 25586 ovolfioo 25587 ovolficc 25588 ovolficcss 25589 ovolfsval 25590 ovolicc2lem1 25637 ovolicc2lem5 25641 ovolfs2 25691 uniiccdif 25698 uniioovol 25699 uniiccvol 25700 uniioombllem2a 25702 uniioombllem2 25703 uniioombllem3a 25704 uniioombllem3 25705 uniioombllem4 25706 uniioombllem5 25707 uniioombllem6 25708 dyadmbl 25720 fsumvma 27335 opreu2reuALT 32733 ofpreima 32922 ofpreima2 32923 elrgspnsubrunlem2 33481 erler 33498 1stmbfm 34567 2ndmbfm 34568 sibfof 34647 oddpwdcv 34662 txsconnlem 35603 mpst123 35903 bj-elid4 37672 bj-elid6 37674 poimirlem4 38135 poimirlem26 38157 poimirlem27 38158 mblfinlem1 38168 mblfinlem2 38169 ftc2nc 38213 heiborlem8 38329 dvhgrp 41743 dvhlveclem 41744 fvovco 45769 dvnprodlem1 46518 volioof 46559 fvvolioof 46561 fvvolicof 46563 etransclem44 46850 ovolval3 47219 ovolval4lem1 47221 ovolval5lem2 47225 ovnovollem1 47228 ovnovollem2 47229 smfpimbor1lem1 47370 rrx2xpref1o 49349 2oppf 49761 eloppf 49762 funcoppc5 49774 swapf2f1oa 49906 swapfida 49909 swapffunca 49913 swapfiso 49914 cofuswapf1 49923 cofuswapf2 49924 fuco2eld2 49943 fuco11b 49966 fuco11bALT 49967 fucoco2 49987 fucofunca 49989 fucolid 49990 fucorid 49991 precofvalALT 49997 reldmlan2 50246 reldmran2 50247 rellan 50252 relran 50253 ranval3 50260 ranrcl4lem 50267 ranup 50271 |
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