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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 1026 |
. 2
| |
| 2 | exbii.1 |
. 2
| |
| 3 | 1, 2 | mpg 962 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: 2exbii 1028 3exbi 1029 exancom 1030 19.29 1047 excom13 1074 exrot4 1076 eeor 1096 equsex 1135 19.12vv 1284 19.41vv 1288 19.41vvv 1289 exdistr 1291 exdistr2 1293 3exdistr 1294 4exdistr 1295 eeeanv 1306 ee4anv 1307 2sb5 1317 2sb5rf 1320 sbel2x 1327 exsb 1332 2exsb 1333 sb8eu 1367 eu1 1369 eu2 1373 moanim 1404 euan 1405 2moswap 1421 2exeu 1423 2eu1 1426 exists1 1434 clelab 1557 clabel 1558 sbabel 1560 rexbii2 1648 r2ex 1667 r19.29 1732 r19.41v 1739 r19.43 1741 isset 1789 rexv 1796 ceqsex2 1811 gencbvex 1813 vtocl2 1818 vtocl3 1819 cla42gv 1840 ceqsrexv 1861 euxfr 1898 reu3 1902 reu6 1903 2reuswap 1908 sbccomglem 1959 nss 2084 abn0 2261 pssnel 2302 snprc 2414 eusn 2416 elunirab 2482 unipr 2483 uniun 2487 uniin 2488 uni0b 2491 dfiun2g 2554 iinss 2568 iunid 2571 iunn0 2575 iunxsn 2580 iunxun 2582 cbvopab2v 2645 unopab 2647 axrep1 2662 axrep4 2665 axrep5 2666 zfrep4 2669 axsep 2670 zfnuleu 2675 axnul2 2676 nvelv 2681 inex1 2684 axpow 2711 pwex 2713 nssss 2732 zfpair 2745 zfpair2 2748 eqvinop 2758 copsexg 2759 opabid 2772 opabn0 2786 dfid3 2799 axun 2831 uniex2 2833 uniuni 2843 reusn 2855 onminex 2983 elxp2 3166 opelxp 3176 opelcog 3247 cnvco 3257 cnvuni 3258 dfdm3 3259 dfrn2 3260 dfrn3 3261 dfdm4 3262 eldm2 3265 dmun 3274 dmin 3275 dmuni 3276 dmopab 3277 dmi 3283 elrn 3306 rnopab 3309 dmcoss 3314 dmcosseq 3316 dmres 3331 dfima2 3356 dfima3 3357 elima3 3361 imadmrn 3365 imai 3368 imasng 3375 elimasn 3377 args 3379 intirr 3390 elxp4 3402 elxp5 3403 rnuni 3408 ssrnres 3427 rninxp 3428 resco 3442 imaco 3443 rnco 3444 coi1 3452 coass 3454 dffun2 3467 dffun5 3470 imadif 3514 funimaexg 3515 fcoi1 3584 fcoi2 3585 f11o 3651 fv2 3659 fvopabn 3725 fvresex 3796 imaiun 3803 funiunfv 3805 abexssex 3811 abexex 3812 isomin 3838 iinon 3849 dfoprab2 3930 1st2val 4033 2nd2val 4034 2ndconst 4035 dfopab2 4051 dfoprab3 4052 oarec 4134 ec2 4202 erdmrn 4214 ecdmn0 4218 snec 4234 domen 4315 mapsnen 4364 xpsnen 4369 xpassen 4375 abfii2 4488 inf2 4532 axinf 4547 axinf2 4548 zfinf 4550 tz9.12lem3 4585 rankuni 4622 scott0 4641 cp 4646 aceq1 4653 aceq0 4654 aceq2 4655 aceq5lem1 4659 aceq5lem2 4660 aceq5lem3 4661 axac 4669 ac9s 4688 kmlem3 4691 kmlem14 4702 kmlem15 4703 kmlem16 4704 cflem 4828 cf0 4833 axpowndlem3 4874 zfcndrep 4889 zfcndun 4890 zfcndpow 4891 zfcndinf 4893 zfcndac 4894 prnmadd 5023 genpass 5035 1pr 5040 distrlem1pr 5050 ltexprlem1 5065 ltexprlem4 5068 reclem1pr 5079 reclem2pr 5080 suplem1pr 5084 suppsr3 5147 elreal 5173 2rexuz 6329 nnwof 6342 nnwos 6343 cbvsum 6875 isumshft 7090 isumshft2 7091 isumnn0nn 7093 isum0split 7103 infcvglem1 7107 efseq1ex 7199 dfef2 7200 efseq0ex 7204 efclt 7205 efcvg 7207 efcvgfsum 7208 reefcl 7210 eirrlem4 7284 acdcALT 7389 infxpidmlem9 7454 isbasis2g 7505 tgval2t 7510 tgval3t 7518 tgss3t 7531 basgent 7533 subtop 7539 ismet 7685 cncfmet 7792 bcthlem14 7894 bcthlem31 7911 isgrp 7923 axgroth2 8630 axgroth3 8631 axgroth4 8632 grothprim 8635 19.41vvvv 8695 eeeeanv 8696 ntunte 8699 abfi 8708 ficli 8727 hmeogrp 8776 isalg 8847 algi 8854 osumlem5 9713 nmcopexlem1 10080 nmcfnexlem1 10109 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-4 951 ax-5 952 ax-gen 955 |
| This theorem depends on definitions: df-bi 147 df-an 225 df-ex 957 |