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| Mirrors > Home > ILE Home > Th. List > biantrurd | Unicode version | ||
| Description: A wff is equivalent to its conjunction with truth. (Contributed by NM, 1-May-1995.) (Proof shortened by Andrew Salmon, 7-May-2011.) |
| Ref | Expression |
|---|---|
| biantrud.1 |
|
| Ref | Expression |
|---|---|
| biantrurd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | biantrud.1 |
. 2
| |
| 2 | ibar 301 |
. 2
| |
| 3 | 1, 2 | syl 14 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia2 107 ax-ia3 108 |
| This proof depends on definitions: df-bi 117 |
| This theorem is used by: mpbirand 445 3anibar 1196 3biant1d 1396 drex1 1851 elrab3t 2981 eldifvsn 3847 bnd2 4310 opbrop 4854 opelresi 5074 funcnv3 5443 fnssresb 5495 dff1o5 5648 fneqeql2 5818 fnniniseg2 5832 dffo3 5855 fmptco 5874 fnressn 5901 fconst4m 5935 riota2df 6060 eloprabga 6175 suppimacnvfn 6486 mptsuppd 6496 suppssrst 6501 suppssrgst 6502 frecabcl 6670 mptelixpg 7016 exmidfodomrlemreseldju 7553 enq0breq 7804 genpassl 7892 genpassu 7893 elnnnn0 9611 peano2z 9685 znnsub 9701 znn0sub 9715 uzin 9965 nn01to3 10027 rpnegap 10098 negelrp 10099 xsubge0 10294 divelunit 10415 elfz5 10431 uzsplit 10510 elfzonelfzo 10659 infssuzex 10677 adddivflid 10742 divfl0 10746 hashfibclem 11298 hashf1lem1 11301 swrdspsleq 11455 2shfti 11612 rexuz3 11772 clim2c 12069 fisumss 12178 bitsmod 12742 bitscmp 12744 bezoutlemmain 12794 nninfctlemfo 12836 dvdsfi 13040 pc2dvds 13132 1arith 13169 xpsfrnel 13718 xpsfrnel2 13720 ghmeqker 14127 lsslss 14802 zndvds 15068 znleval2 15073 eltg3 15249 lmbrf 15407 cnrest2 15428 cnptoprest 15431 cnptoprest2 15432 ismet2 15546 elbl2ps 15584 elbl2 15585 xblpnfps 15590 xblpnf 15591 bdxmet 15693 metcn 15706 cnbl0 15726 cnblcld 15727 mulc1cncf 15781 ellimc3apf 15852 pilem1 15972 wilthlem1 16193 bposlem1 16272 lgsdilem 16312 lgsne0 16323 lgsabs1 16324 lgsquadlem1 16362 lgsquadlem2 16363 isclwwlknx 16823 clwwlkn1 16825 |
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