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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 7723 | . 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 1537 ∈ wcel 2114 〈cop 4573 × cxp 5553 ‘cfv 6355 1st c1st 7687 2nd c2nd 7688 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-sbc 3773 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4839 df-br 5067 df-opab 5129 df-mpt 5147 df-id 5460 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-iota 6314 df-fun 6357 df-fv 6363 df-1st 7689 df-2nd 7690 |
This theorem is referenced by: 1st2ndb 7729 xpopth 7730 eqop 7731 2nd1st 7737 1st2nd 7738 opiota 7757 fimaproj 7829 disjen 8674 xpmapenlem 8684 mapunen 8686 djulf1o 9341 djurf1o 9342 djur 9348 r0weon 9438 enqbreq2 10342 nqereu 10351 lterpq 10392 elreal2 10554 cnref1o 12385 ruclem6 15588 ruclem8 15590 ruclem9 15591 ruclem12 15594 eucalgval 15926 eucalginv 15928 eucalglt 15929 eucalg 15931 qnumdenbi 16084 isstruct2 16493 xpsff1o 16840 comfffval2 16971 comfeq 16976 idfucl 17151 funcpropd 17170 coapm 17331 xpccatid 17438 1stfcl 17447 2ndfcl 17448 1st2ndprf 17456 xpcpropd 17458 evlfcl 17472 hofcl 17509 hofpropd 17517 yonedalem3 17530 gsum2dlem2 19091 mdetunilem9 21229 tx1cn 22217 tx2cn 22218 txdis 22240 txlly 22244 txnlly 22245 txhaus 22255 txkgen 22260 txconn 22297 utop3cls 22860 ucnima 22890 fmucndlem 22900 psmetxrge0 22923 imasdsf1olem 22983 cnheiborlem 23558 caublcls 23912 bcthlem1 23927 bcthlem2 23928 bcthlem4 23930 bcthlem5 23931 ovolfcl 24067 ovolfioo 24068 ovolficc 24069 ovolficcss 24070 ovolfsval 24071 ovolicc2lem1 24118 ovolicc2lem5 24122 ovolfs2 24172 uniiccdif 24179 uniioovol 24180 uniiccvol 24181 uniioombllem2a 24183 uniioombllem2 24184 uniioombllem3a 24185 uniioombllem3 24186 uniioombllem4 24187 uniioombllem5 24188 uniioombllem6 24189 dyadmbl 24201 fsumvma 25789 opreu2reuALT 30240 ofpreima 30410 ofpreima2 30411 1stmbfm 31518 2ndmbfm 31519 sibfof 31598 oddpwdcv 31613 txsconnlem 32487 mpst123 32787 bj-elid4 34463 bj-elid6 34465 poimirlem4 34911 poimirlem26 34933 poimirlem27 34934 mblfinlem1 34944 mblfinlem2 34945 ftc2nc 34991 heiborlem8 35111 dvhgrp 38258 dvhlveclem 38259 fvovco 41475 dvnprodlem1 42251 volioof 42292 fvvolioof 42294 fvvolicof 42296 etransclem44 42583 ovolval3 42949 ovolval4lem1 42951 ovolval5lem2 42955 ovnovollem1 42958 ovnovollem2 42959 smfpimbor1lem1 43093 rrx2xpref1o 44725 |
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