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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 7967 | . 2 ⊢ (𝐴 ∈ (𝐵 × 𝐶) ↔ (𝐴 = 〈(1st ‘𝐴), (2nd ‘𝐴)〉 ∧ ((1st ‘𝐴) ∈ 𝐵 ∧ (2nd ‘𝐴) ∈ 𝐶))) | |
| 2 | 1 | simplbi 497 | 1 ⊢ (𝐴 ∈ (𝐵 × 𝐶) → 𝐴 = 〈(1st ‘𝐴), (2nd ‘𝐴)〉) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1541 ∈ wcel 2113 〈cop 4586 × cxp 5622 ‘cfv 6492 1st c1st 7931 2nd c2nd 7932 |
| 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 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2184 ax-ext 2708 ax-sep 5241 ax-nul 5251 ax-pr 5377 ax-un 7680 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 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 3061 df-rab 3400 df-v 3442 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-nul 4286 df-if 4480 df-sn 4581 df-pr 4583 df-op 4587 df-uni 4864 df-br 5099 df-opab 5161 df-mpt 5180 df-id 5519 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-iota 6448 df-fun 6494 df-fv 6500 df-1st 7933 df-2nd 7934 |
| This theorem is referenced by: 1st2ndb 7973 xpopth 7974 eqop 7975 2nd1st 7982 1st2nd 7983 opiota 8003 fimaproj 8077 disjen 9062 xpmapenlem 9072 mapunen 9074 djulf1o 9824 djurf1o 9825 djur 9831 r0weon 9922 enqbreq2 10831 nqereu 10840 lterpq 10881 elreal2 11043 cnref1o 12898 ruclem6 16160 ruclem8 16162 ruclem9 16163 ruclem12 16166 eucalgval 16509 eucalginv 16511 eucalglt 16512 eucalg 16514 qnumdenbi 16671 isstruct2 17076 xpsff1o 17488 comfffval2 17624 comfeq 17629 idfucl 17805 funcpropd 17826 coapm 17995 xpccatid 18111 1stfcl 18120 2ndfcl 18121 1st2ndprf 18129 xpcpropd 18131 evlfcl 18145 hofcl 18182 hofpropd 18190 yonedalem3 18203 gsum2dlem2 19900 mdetunilem9 22564 tx1cn 23553 tx2cn 23554 txdis 23576 txlly 23580 txnlly 23581 txhaus 23591 txkgen 23596 txconn 23633 utop3cls 24195 ucnima 24224 fmucndlem 24234 psmetxrge0 24257 imasdsf1olem 24317 cnheiborlem 24909 caublcls 25265 bcthlem1 25280 bcthlem2 25281 bcthlem4 25283 bcthlem5 25284 ovolfcl 25423 ovolfioo 25424 ovolficc 25425 ovolficcss 25426 ovolfsval 25427 ovolicc2lem1 25474 ovolicc2lem5 25478 ovolfs2 25528 uniiccdif 25535 uniioovol 25536 uniiccvol 25537 uniioombllem2a 25539 uniioombllem2 25540 uniioombllem3a 25541 uniioombllem3 25542 uniioombllem4 25543 uniioombllem5 25544 uniioombllem6 25545 dyadmbl 25557 fsumvma 27180 opreu2reuALT 32551 ofpreima 32743 ofpreima2 32744 elrgspnsubrunlem2 33330 erler 33347 1stmbfm 34417 2ndmbfm 34418 sibfof 34497 oddpwdcv 34512 txsconnlem 35434 mpst123 35734 bj-elid4 37369 bj-elid6 37371 poimirlem4 37821 poimirlem26 37843 poimirlem27 37844 mblfinlem1 37854 mblfinlem2 37855 ftc2nc 37899 heiborlem8 38015 dvhgrp 41363 dvhlveclem 41364 fvovco 45433 dvnprodlem1 46186 volioof 46227 fvvolioof 46229 fvvolicof 46231 etransclem44 46518 ovolval3 46887 ovolval4lem1 46889 ovolval5lem2 46893 ovnovollem1 46896 ovnovollem2 46897 smfpimbor1lem1 47038 rrx2xpref1o 48960 2oppf 49373 eloppf 49374 funcoppc5 49386 swapf2f1oa 49518 swapfida 49521 swapffunca 49525 swapfiso 49526 cofuswapf1 49535 cofuswapf2 49536 fuco2eld2 49555 fuco11b 49578 fuco11bALT 49579 fucoco2 49599 fucofunca 49601 fucolid 49602 fucorid 49603 precofvalALT 49609 reldmlan2 49858 reldmran2 49859 rellan 49864 relran 49865 ranval3 49872 ranrcl4lem 49879 ranup 49883 |
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