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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 7726 | . 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 398 = wceq 1536 ∈ wcel 2113 〈cop 4576 × cxp 5556 ‘cfv 6358 1st c1st 7690 2nd c2nd 7691 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1969 ax-7 2014 ax-8 2115 ax-9 2123 ax-10 2144 ax-11 2160 ax-12 2176 ax-ext 2796 ax-sep 5206 ax-nul 5213 ax-pow 5269 ax-pr 5333 ax-un 7464 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1539 df-ex 1780 df-nf 1784 df-sb 2069 df-mo 2621 df-eu 2653 df-clab 2803 df-cleq 2817 df-clel 2896 df-nfc 2966 df-ral 3146 df-rex 3147 df-rab 3150 df-v 3499 df-sbc 3776 df-dif 3942 df-un 3944 df-in 3946 df-ss 3955 df-nul 4295 df-if 4471 df-sn 4571 df-pr 4573 df-op 4577 df-uni 4842 df-br 5070 df-opab 5132 df-mpt 5150 df-id 5463 df-xp 5564 df-rel 5565 df-cnv 5566 df-co 5567 df-dm 5568 df-rn 5569 df-iota 6317 df-fun 6360 df-fv 6366 df-1st 7692 df-2nd 7693 |
This theorem is referenced by: 1st2ndb 7732 xpopth 7733 eqop 7734 2nd1st 7740 1st2nd 7741 opiota 7760 fimaproj 7832 disjen 8677 xpmapenlem 8687 mapunen 8689 djulf1o 9344 djurf1o 9345 djur 9351 r0weon 9441 enqbreq2 10345 nqereu 10354 lterpq 10395 elreal2 10557 cnref1o 12387 ruclem6 15591 ruclem8 15593 ruclem9 15594 ruclem12 15597 eucalgval 15929 eucalginv 15931 eucalglt 15932 eucalg 15934 qnumdenbi 16087 isstruct2 16496 xpsff1o 16843 comfffval2 16974 comfeq 16979 idfucl 17154 funcpropd 17173 coapm 17334 xpccatid 17441 1stfcl 17450 2ndfcl 17451 1st2ndprf 17459 xpcpropd 17461 evlfcl 17475 hofcl 17512 hofpropd 17520 yonedalem3 17533 gsum2dlem2 19094 mdetunilem9 21232 tx1cn 22220 tx2cn 22221 txdis 22243 txlly 22247 txnlly 22248 txhaus 22258 txkgen 22263 txconn 22300 utop3cls 22863 ucnima 22893 fmucndlem 22903 psmetxrge0 22926 imasdsf1olem 22986 cnheiborlem 23561 caublcls 23915 bcthlem1 23930 bcthlem2 23931 bcthlem4 23933 bcthlem5 23934 ovolfcl 24070 ovolfioo 24071 ovolficc 24072 ovolficcss 24073 ovolfsval 24074 ovolicc2lem1 24121 ovolicc2lem5 24125 ovolfs2 24175 uniiccdif 24182 uniioovol 24183 uniiccvol 24184 uniioombllem2a 24186 uniioombllem2 24187 uniioombllem3a 24188 uniioombllem3 24189 uniioombllem4 24190 uniioombllem5 24191 uniioombllem6 24192 dyadmbl 24204 fsumvma 25792 opreu2reuALT 30243 ofpreima 30413 ofpreima2 30414 1stmbfm 31522 2ndmbfm 31523 sibfof 31602 oddpwdcv 31617 txsconnlem 32491 mpst123 32791 bj-elid4 34464 bj-elid6 34466 poimirlem4 34900 poimirlem26 34922 poimirlem27 34923 mblfinlem1 34933 mblfinlem2 34934 ftc2nc 34980 heiborlem8 35100 dvhgrp 38247 dvhlveclem 38248 fvovco 41461 dvnprodlem1 42237 volioof 42279 fvvolioof 42281 fvvolicof 42283 etransclem44 42570 ovolval3 42936 ovolval4lem1 42938 ovolval5lem2 42942 ovnovollem1 42945 ovnovollem2 42946 smfpimbor1lem1 43080 rrx2xpref1o 44712 |
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