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| Description: Inference adding existential quantifier to both sides of an equivalence. |
| Ref | Expression |
|---|---|
| exbii.1 |
|
| Ref | Expression |
|---|---|
| exbii |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 19.18 1086 |
. 2
| |
| 2 | exbii.1 |
. 2
| |
| 3 | 1, 2 | mpg 1022 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: 2exbii 1088 3exbii 1089 exancom 1090 19.29 1107 excom13 1134 exrot4 1136 eeor 1156 equsex 1189 19.12vv 1340 19.41vv 1344 19.41vvv 1345 exdistr 1347 exdistr2 1349 3exdistr 1350 4exdistr 1351 eeeanv 1362 ee4anv 1363 2sb5 1374 2sb5rf 1377 sbel2x 1384 exsb 1389 2exsb 1390 sb8eu 1429 eu1 1431 eu2 1435 moanim 1466 euan 1467 2moswap 1484 2exeu 1486 2eu1 1489 exists1 1498 clelab 1624 clabel 1625 sbabel 1627 rexbii2 1718 r2ex 1737 r19.29 1802 r19.41v 1809 r19.43 1811 isset 1860 rexv 1867 ceqsex2 1882 gencbvex 1884 vtocl2 1889 vtocl3 1890 cla42gv 1911 cla43gv 1913 ceqsrexv 1935 euxfr 1973 reu3 1977 reu6 1978 2reuswap 1983 sbc8g 2004 sbccomglem 2038 nss 2165 abn0 2343 pssnel 2384 snprc 2504 eusn 2507 elunirab 2580 unipr 2581 uniun 2586 uniin 2587 uni0b 2590 dfiun2g 2654 iinss 2668 iunn0 2676 iunxsn 2682 iunxun 2684 cbvopab2v 2751 unopab 2753 axrep1 2768 axrep4 2771 axrep5 2772 zfrep4 2775 axsep 2776 zfnuleu 2781 axnul2 2782 vprc 2787 inex1 2790 axpweq 2817 zfpow 2819 axpow2 2820 axpow3 2821 pwex 2823 nssss 2841 zfpair 2853 zfpair2 2856 eqvinop 2867 copsexg 2868 opabid 2887 opabn0 2902 dfid3 2914 zfun 3090 uniex2 3092 uniuni 3104 reusn 3115 onminex 3164 elxp2 3284 opelxp 3297 elvvv 3314 relop 3365 opelco2g 3380 cnvco 3391 cnvuni 3392 dfdm3 3393 dfrn2 3394 dfrn3 3395 dfdm4 3396 eldm2 3399 dmun 3408 dmin 3409 dmuni 3410 dmopab 3411 dmi 3415 elrn 3437 rnopab 3440 dmcoss 3450 dmcosseq 3452 dmres 3470 dfima2 3497 dfima3 3498 elima3 3502 imadmrn 3506 imai 3509 imasng 3516 elimasn 3518 args 3520 intirr 3533 rnuni 3544 ssrnres 3566 rninxp 3567 elxp4 3585 elxp5 3586 dfco2 3598 coundi 3600 coundir 3601 resco 3603 imaco 3604 rnco 3605 coiun 3608 coi1 3614 coass 3616 dffun2 3631 dffun5 3634 imadif 3679 funimaexg 3681 iunfopab 3719 fcoi1 3752 fcoi2 3753 f11o 3823 fv2 3831 fvopabn 3897 fvresex 3971 imaiun 3978 funiunfv 3980 abexssex 3986 abexex 3987 isomin 4013 dfoprab2 4050 dfopab2 4173 dfoprab3 4174 fparlem3 4201 fparlem4 4202 fsplit 4204 iinon 4208 onopriun 4211 oarec 4332 dfec2 4404 erdmrn 4416 ecdmn0 4420 uniqs 4436 snec 4437 domen 4520 mapsnen 4570 xpsnen 4576 xpassen 4582 abfii2 4705 inf2 4753 zfinf 4768 axinf2 4769 zfinf2 4771 tz9.12lem3 4807 rankuni 4844 scott0 4863 cp 4868 aceq1 4875 aceq0 4876 aceq2 4877 aceq5lem1 4881 aceq5lem2 4882 aceq5lem3 4883 zfac 4891 ac9s 4910 kmlem3 4913 kmlem14 4924 kmlem15 4925 kmlem16 4926 cflem 5055 cf0 5060 axpowndlem3 5105 zfcndrep 5120 zfcndun 5121 zfcndpow 5122 zfcndinf 5124 zfcndac 5125 prnmadd 5254 genpass 5266 1pr 5271 distrlem1pr 5281 ltexprlem1 5296 ltexprlem4 5299 reclem1pr 5310 reclem2pr 5311 suplem1pr 5315 suppsr3 5378 elreal 5404 2rexuz 6573 nnwof 6586 nnwos 6587 cbvsumi 7189 isumshfti 7408 isumshft2i 7409 isumnn0nn 7411 isum0spliti 7421 infcvglem1 7425 efseq1ex 7511 dfef2i 7512 efseq0ex 7516 efcl 7517 efcvg 7519 efcvgfsum 7520 reefcli 7522 eirrlem4 7597 acdcALT 7708 infxpidmlem9 7772 isbasis2g 7824 tgval2 7829 tgval3 7837 tgss3 7850 basgen 7852 subtop 7858 ismet 8008 cncfmet 8116 bcthlem14 8223 bcthlem31 8240 isgrp 8254 spwval2 8915 axgroth2 9050 axgroth3 9051 axgroth4 9052 grothpw 9054 axgroth5 9055 grothprim 9057 osumlem5 9860 nmcopexlem1 10230 nmcfnexlem1 10259 19.41vvvv 10719 eeeeanv 10720 ntunte 10728 abfi 10737 ficli 10756 islatalg 10831 ismgm 10897 hmeogrp 11044 sbtpsines 11062 rcfpfillem3 11091 isalg 11175 algi 11181 cnvresima 11407 opncldf1 11454 compfipin0 11493 alexsublem3 11498 is1stc3 11530 isfne2 11542 isfne3 11543 neibastop2lem2 11581 neibastop2lem4 11583 isfbas2 11622 elfg 11633 extbas1 11641 filrn 11643 neifg 11644 filssufillem 11655 ufileu 11658 hausfillim 11685 gapm 11784 sbmo 11787 opabex3 11806 oprabopabf 11807 firnfi3 11830 sdc 11877 fsumleisumi 11889 sstotbnd 11992 heiborlem1 12011 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-gen 999 ax-4 1009 ax-5o 1011 |
| This theorem depends on definitions: df-bi 145 df-an 223 df-ex 1017 |