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| Description: Deduction negating both sides of a logical equivalence. |
| Ref | Expression |
|---|---|
| bid.1 |
|
| Ref | Expression |
|---|---|
| negbid |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bid.1 |
. 2
| |
| 2 | pm4.11 521 |
. 2
| |
| 3 | 1, 2 | sylib 198 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: imbi1d 612 con3th 765 equsex 1150 drex1 1154 cbvex 1164 hbsb4 1246 cbvexd 1319 ax11inda 1369 2mo 1445 neeq1 1587 neeq2 1588 necon3abid 1596 neleq1 1639 neleq2 1640 gencbval 1836 cla4egf 1857 cla42gv 1861 cla43gv 1863 ru 1934 sbcng 1965 sbcrext 1987 sbcrexgf 1989 eldif 2053 difeq2 2150 disjne 2311 prel12 2480 nalset 2707 dtruALT 2743 dtru 2767 opprc1b 2791 poeq1 2837 pocl 2839 sotric 2855 sotrieq 2856 so 2859 rexxfrd 2893 rexxfr 2896 elpwunsn 2907 dffr2 2914 freq1 2917 efrirr 2923 tz7.2 2926 wereu 2940 nordeq 2962 ordtri1 2975 ordtri3 2978 ordsucsssuc 3069 orduninsuc 3109 dfom2 3128 omssnlim 3140 ssnlim 3162 vtoclibr 3208 rexxp 3214 weinxp 3228 cnvpo 3514 fvco 3765 cbvexfo 3877 f1oweALT 3897 canth 3898 tz7.44-2 3920 rdglem2 3929 tz7.48lem 3946 abianfp 3953 ndmoprg 4034 ndmoprgOLD 4035 oacan 4172 omlimcl 4199 nneob 4245 2dom 4414 0sdomg 4452 php 4499 nndomo 4506 nnsdomo 4507 omsdomnn 4515 unfilem1 4530 supmo 4556 supub 4560 suplub 4561 supmaxlem 4568 suppr 4570 supsnALT 4572 zfregcl 4575 elirrv 4578 elirr 4579 en2lp 4582 noinfep 4620 rankr1g 4655 hta 4708 ac6n 4737 kmlem2 4746 kmlem4 4748 zorn2 4776 domtri 4818 alephord3 4858 alephval3 4883 axpowndlem2 4930 axpowndlem3 4931 axpowndlem4 4932 axregnd 4936 ltsopi 4996 addnidpi 5008 ltsopq 5055 genpnnp 5088 ltexprlem7 5128 addcanpr 5132 prlem936 5135 reclem1pr 5136 reclem3pr 5138 supexpr 5143 ltsosr 5183 suppsr 5202 supsrlem6 5210 supre 5240 ltsor 5241 xrlenltt 5481 axlttri 5483 axsup 5487 muln0bt 5674 lediv1t 5814 lemuldivt 5832 le2msq 5838 lbinfm 6003 infm3 6009 infmsup 6023 xrsupexmnf 6029 xrinfmexpnf 6030 xrsupsslem 6031 xrinfmsslem 6032 xrub 6035 supxr 6036 supxrre 6038 lt0nnn0 6071 znnnlt1t 6111 nneot 6153 qbtwnxr 6225 indstr 6401 sqrlem18 6628 sqrlem21 6631 sqrlem22 6632 sqr2irrlem3 6664 bccl2t 6917 climrecl 7055 climge0 7057 climubi 7097 eirr 7343 acdc3 7437 acdc2 7440 acdc5 7443 acdc 7445 ruclem29 7489 ruclem35 7495 ruclem37 7497 ruclem39 7499 infxpidmlem10 7512 clsval2 7635 elcls 7654 bl2in 7795 tgioolem 7866 dscmet 7870 bcthlem9 7957 bcthlem33 7981 spwnex 8602 efif1lem6 8669 chpsscon3t 9364 chnlet 9375 nonbool 9536 pjnelt 9611 eigortht 9704 specvalt 9764 eighmortht 9827 nmcoplb 9896 nmcfnlb 9925 str 10122 hstr 10130 cvbrt 10147 cvcon3t 10149 chcv1t 10219 cvexchlem 10232 chrelat2t 10234 atnem0 10241 gelcomplOLD 10353 gelsupvalOLD 10354 fiiu 10386 fiiu2 10413 cdrci 10417 isfil 10469 fipfil2 10475 efilcp2 10486 cnfilca 10487 iintlem1 10512 |
| 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 147 df-an 225 |