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| Description: A mixed syllogism inference from a nested implication and a biconditional. Useful for substituting an embedded consequent with a definition. |
| Ref | Expression |
|---|---|
| syl6ibr.1 |
|
| syl6ibr.2 |
|
| Ref | Expression |
|---|---|
| syl6ibr |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | syl6ibr.1 |
. 2
| |
| 2 | syl6ibr.2 |
. . 3
| |
| 3 | 2 | biimpri 150 |
. 2
|
| 4 | 1, 3 | syl6 22 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: imp4a 362 nic-ax 969 hband 1147 equs5e 1235 mopick2 1476 euor2 1477 2moswap 1484 2eu1 1489 necon3bd 1646 necon3d 1647 necon2ad 1657 r19.21ad 1763 cla4egf 1907 cla42gv 1911 cla43gv 1913 ra5 2050 difsn 2528 pwpw0 2533 sssn 2538 pwsnALT 2566 ssuni 2589 wefrc 2970 tron 2998 ordtri3or 3007 ordtri3 3011 oneqmini 3024 dfwe2 3140 ssorduni 3147 tfis 3208 nnsuc 3235 ssrel 3334 ssrelrel 3340 opeldm 3405 relssres 3482 cotr 3528 cnvsym 3529 ssrnres 3566 funss 3639 fnun 3700 f1oun 3815 ssimaex 3879 fvopab3ig 3889 chfnrn 3916 dffo4 3934 dffo5 3935 fvclss 3969 isomin 4013 isofrlem 4015 f1oweALT 4020 fnoprabg 4072 oprabvalig 4084 rdglim2 4250 tz7.48lem 4256 tz7.49 4260 infsdomnn 4678 pssnn 4681 ssfi 4683 pm54.43 4715 inf3lem4 4761 rankr1 4820 r1pwcl 4833 aceq5lem4 4884 aceq5 4886 aceq6b 4888 ac5b 4899 kmlem2 4912 zorn2lem4 4937 zorn2lem6 4939 zorn2lem7 4940 cardne 4978 carden 4979 carddom 4985 alephordi 5024 cardaleph 5035 carduniima 5040 cardinfima 5041 alephval3 5053 cflim 5059 indpi 5188 ltaddpq 5233 genpcl 5265 prlem934 5293 ltaddpr 5294 ltexprlem1 5296 ltexprlem5 5300 reclem4pr 5313 suplem1pr 5315 pre-axsup 5445 zaddcl 6333 zmulcl 6348 zneo 6371 uzwo4OLD 6381 icoshft 6535 uzwo 6582 uzwoOLD 6583 nn0opthi 6867 sqr2irr 6930 caubndi 7129 bccl2 7174 iserzcmp0 7346 caucvglem2 7361 basgen2 7851 distop 7861 cnpco 7979 cncnplem2 7985 metreslem 8032 unirnbl 8085 metelcls 8176 ubthlem5 8791 shmodsi 9638 orthin 9646 h1datomi 9780 osumlem4 9859 stcltr2i 10483 atom1d 10561 sumdmdii 10624 cdj3lem1 10643 oprabvaligg 10729 inttr 10787 restidsing 10805 cdrci 10994 fipfil 11076 fipfil2 11077 filintf 11081 rdmob 11202 dmsdtriord 11408 ordtypelem4 11430 ordtypelem7 11433 onsdom 11437 omsubsuc2 11439 elomsubsd 11446 compsublem 11487 cptclsscpt 11489 hscptsscld 11491 compfipin0 11493 alexsublem3 11498 alexsub 11500 subtopmetlem 11505 subtopmet 11506 reconnlem4 11510 reconnlem5 11511 ivthALT 11515 fnessref 11564 locfincomp 11575 ist1-3 11604 fbunfip 11631 filrn 11643 isufil2 11650 filssufillem 11655 ufinffr 11663 ufilen 11664 filcon 11665 ufcondr 11666 fmfnfm 11704 fcluscomp 11733 tailfb 11762 filnetlem5 11767 ssga 11777 gapmlem 11783 gapm 11784 findcard 11836 uzm1 11862 sdc 11877 metsstop 11909 uptx 11978 totbndss 11993 heiborlem23 12033 heiborlem28 12038 recms 12066 phtpcdm 12103 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 |
| This theorem depends on definitions: df-bi 145 |