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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 8059 | . 2 ⊢ (𝐴 ∈ (𝐵 × 𝐶) ↔ (𝐴 = 〈(1st ‘𝐴), (2nd ‘𝐴)〉 ∧ ((1st ‘𝐴) ∈ 𝐵 ∧ (2nd ‘𝐴) ∈ 𝐶))) | |
| 2 | 1 | simplbi 502 | 1 ⊢ (𝐴 ∈ (𝐵 × 𝐶) → 𝐴 = 〈(1st ‘𝐴), (2nd ‘𝐴)〉) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2147 〈cop 4838 × cxp 5653 ‘cfv 6558 1st c1st 8023 2nd c2nd 8024 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5252 ax-nul 5263 ax-pr 5395 ax-un 7775 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-br 5107 df-opab 5171 df-mpt 5190 df-id 5550 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-iota 6512 df-fun 6560 df-fv 6566 df-1st 8025 df-2nd 8026 |
| This theorem is used by: 1st2ndb 8065 xpopth 8066 eqop 8067 2nd1st 8073 1st2nd 8074 opiota 8095 fimaproj 8179 disjen 9181 xpmapenlem 9191 mapunen 9193 djulf1o 10020 djurf1o 10021 djur 10027 r0weon 10118 enqbreq2 11032 nqereu 11041 lterpq 11082 elreal2 11244 cnref1o 13140 ruclem6 16432 ruclem8 16434 ruclem9 16435 ruclem12 16438 eucalgval 16786 eucalginv 16788 eucalglt 16789 eucalg 16791 qnumdenbi 16949 isstruct2 17356 xpsff1o 17768 comfffval2 17904 comfeq 17909 idfucl 18085 funcpropd 18106 coapm 18275 xpccatid 18391 1stfcl 18400 2ndfcl 18401 1st2ndprf 18409 xpcpropd 18411 evlfcl 18425 hofcl 18462 hofpropd 18470 yonedalem3 18483 gsum2dlem2 20215 mdetunilem9 22965 tx1cn 23958 tx2cn 23959 txdis 23981 txlly 23985 txnlly 23986 txhaus 23996 txkgen 24001 txconn 24038 utop3cls 24600 ucnima 24629 fmucndlem 24639 psmetxrge0 24662 imasdsf1olem 24722 cnheiborlem 25305 caublcls 25660 bcthlem1 25675 bcthlem2 25676 bcthlem4 25678 bcthlem5 25679 ovolfcl 25817 ovolfioo 25818 ovolficc 25819 ovolficcss 25820 ovolfsval 25821 ovolicc2lem1 25868 ovolicc2lem5 25872 ovolfs2 25922 uniiccdif 25929 uniioovol 25930 uniiccvol 25931 uniioombllem2a 25933 uniioombllem2 25934 uniioombllem3a 25935 uniioombllem3 25936 uniioombllem4 25937 uniioombllem5 25938 uniioombllem6 25939 dyadmbl 25951 fsumvma 27570 opreu2reuALT 33145 ofpreima 33331 ofpreima2 33332 elrgspnsubrunlem2 33879 erler 33896 1stmbfm 34962 2ndmbfm 34963 sibfof 35042 oddpwdcv 35057 ot1st2nd 35795 txsconnlem 36172 mpst123 36472 bj-elid4 38281 bj-elid6 38283 poimirlem4 38734 poimirlem26 38756 poimirlem27 38757 mblfinlem1 38767 mblfinlem2 38768 ftc2nc 38812 heiborlem8 38944 dvhgrp 42356 dvhlveclem 42357 fvovco 46413 dvnprodlem1 47161 volioof 47202 fvvolioof 47204 fvvolicof 47206 etransclem44 47493 ovolval3 47862 ovolval4lem1 47864 ovolval5lem2 47868 ovnovollem1 47871 ovnovollem2 47872 smfpimbor1lem1 48013 2oppf 50453 eloppf 50454 funcoppc5 50466 swapf2f1oa 50604 swapfida 50607 swapffunca 50611 swapfiso 50612 cofuswapf1 50621 cofuswapf2 50622 fuco2eld2 50641 fuco11b 50664 fuco11bALT 50665 fucoco2 50685 fucofunca 50687 fucolid 50688 fucorid 50689 precofvalALT 50708 reldmlan2 51005 reldmran2 51006 rellan 51011 relran 51012 ranval3 51019 ranrcl4lem 51026 ranup 51030 |
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