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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 1046 |
. 2
| |
| 2 | exbii.1 |
. 2
| |
| 3 | 1, 2 | mpg 983 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: 2exbii 1048 3exbi 1049 exancom 1050 19.29 1067 excom13 1094 exrot4 1096 eeor 1116 equsex 1148 19.12vv 1297 19.41vv 1301 19.41vvv 1302 exdistr 1304 exdistr2 1306 3exdistr 1307 4exdistr 1308 eeeanv 1319 ee4anv 1320 2sb5 1330 2sb5rf 1333 sbel2x 1340 exsb 1345 2exsb 1346 sb8eu 1383 eu1 1385 eu2 1389 moanim 1420 euan 1421 2moswap 1437 2exeu 1439 2eu1 1442 exists1 1450 clelab 1573 clabel 1574 sbabel 1576 rexbii2 1664 r2ex 1683 r19.29 1748 r19.41v 1755 r19.43 1757 isset 1805 rexv 1812 ceqsex2 1827 gencbvex 1829 vtocl2 1834 vtocl3 1835 cla42gv 1856 cla43gv 1858 ceqsrexv 1880 euxfr 1917 reu3 1921 reu6 1922 2reuswap 1927 sbccomglem 1978 nss 2103 abn0 2280 pssnel 2321 snprc 2433 eusn 2436 elunirab 2504 unipr 2505 uniun 2509 uniin 2510 uni0b 2513 dfiun2g 2576 iinss 2590 iunid 2593 iunn0 2597 iunxsn 2602 iunxun 2604 cbvopab2v 2667 unopab 2669 axrep1 2684 axrep4 2687 axrep5 2688 zfrep4 2691 axsep 2692 zfnuleu 2697 axnul2 2698 nvelv 2703 inex1 2706 axpow 2733 pwex 2735 nssss 2754 zfpair 2767 zfpair2 2770 eqvinop 2781 copsexg 2782 opabid 2799 opabn0 2813 dfid3 2826 axun 2858 uniex2 2860 uniuni 2870 reusn 2882 onminex 3010 elxp2 3193 opelxp 3204 relop 3265 opelcog 3279 cnvco 3289 cnvuni 3290 dfdm3 3291 dfrn2 3292 dfrn3 3293 dfdm4 3294 eldm2 3297 dmun 3306 dmin 3307 dmuni 3308 dmopab 3309 dmi 3315 elrn 3336 rnopab 3339 dmcoss 3347 dmcosseq 3349 dmres 3364 dfima2 3389 dfima3 3390 elima3 3394 imadmrn 3398 imai 3401 imasng 3408 elimasn 3410 args 3412 intirr 3427 elxp4 3439 elxp5 3440 rnuni 3445 ssrnres 3467 rninxp 3468 resco 3486 imaco 3487 rnco 3488 coi1 3496 coass 3498 dffun2 3512 dffun5 3515 imadif 3560 funimaexg 3561 fcoi1 3630 fcoi2 3631 f11o 3697 fv2 3705 fvopabn 3771 fvresex 3842 imaiun 3849 funiunfv 3851 abexssex 3857 abexex 3858 isomin 3884 iinon 3895 dfoprab2 3976 1st2val 4079 2nd2val 4080 2ndconst 4081 dfopab2 4097 dfoprab3 4098 oarec 4180 dfec2 4248 erdmrn 4260 ecdmn0 4264 snec 4280 domen 4361 mapsnen 4410 xpsnen 4415 xpassen 4421 abfii2 4536 inf2 4580 axinf 4595 axinf2 4596 zfinf 4598 tz9.12lem3 4633 rankuni 4670 scott0 4689 cp 4694 aceq1 4701 aceq0 4702 aceq2 4703 aceq5lem1 4707 aceq5lem2 4708 aceq5lem3 4709 axac 4717 ac9s 4736 kmlem3 4739 kmlem14 4750 kmlem15 4751 kmlem16 4752 cflem 4877 cf0 4882 axpowndlem3 4923 zfcndrep 4938 zfcndun 4939 zfcndpow 4940 zfcndinf 4942 zfcndac 4943 prnmadd 5072 genpass 5084 1pr 5089 distrlem1pr 5099 ltexprlem1 5114 ltexprlem4 5117 reclem1pr 5128 reclem2pr 5129 suplem1pr 5133 suppsr3 5196 elreal 5222 2rexuz 6378 nnwof 6391 nnwos 6392 cbvsum 6924 isumshft 7139 isumshft2 7140 isumnn0nn 7142 isum0split 7152 infcvglem1 7156 efseq1ex 7248 dfef2 7249 efseq0ex 7253 efclt 7254 efcvg 7256 efcvgfsum 7257 reefcl 7259 eirrlem4 7333 acdcALT 7438 infxpidmlem9 7503 isbasis2g 7554 tgval2t 7559 tgval3t 7567 tgss3t 7580 basgent 7582 subtop 7588 ismet 7737 cncfmet 7844 bcthlem14 7946 bcthlem31 7963 isgrp 7975 spwval2 8577 axgroth2 8717 axgroth3 8718 axgroth4 8719 grothprim 8722 osumlem5 9499 nmcopexlem1 9866 nmcfnexlem1 9895 19.41vvvv 10335 eeeeanv 10336 ntunte 10340 abfi 10349 ficli 10368 hmeogrp 10425 isalg 10497 algi 10504 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-gen 960 ax-4 970 ax-5o 972 |
| This theorem depends on definitions: df-bi 147 df-an 225 df-ex 978 |