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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 7552 enq0breq 7803 genpassl 7891 genpassu 7892 elnnnn0 9606 peano2z 9680 znnsub 9696 znn0sub 9710 uzin 9955 nn01to3 10017 rpnegap 10087 negelrp 10088 xsubge0 10283 divelunit 10404 elfz5 10420 uzsplit 10499 elfzonelfzo 10648 infssuzex 10666 adddivflid 10727 divfl0 10731 hashfibclem 11282 hashf1lem1 11285 swrdspsleq 11439 2shfti 11596 rexuz3 11756 clim2c 12050 fisumss 12159 bitsmod 12723 bitscmp 12725 bezoutlemmain 12775 nninfctlemfo 12817 dvdsfi 13017 pc2dvds 13109 1arith 13146 xpsfrnel 13665 xpsfrnel2 13667 ghmeqker 14074 lsslss 14718 zndvds 14984 znleval2 14989 eltg3 15158 lmbrf 15316 cnrest2 15337 cnptoprest 15340 cnptoprest2 15341 ismet2 15455 elbl2ps 15493 elbl2 15494 xblpnfps 15499 xblpnf 15500 bdxmet 15602 metcn 15615 cnbl0 15635 cnblcld 15636 mulc1cncf 15690 ellimc3apf 15761 pilem1 15880 wilthlem1 16094 lgsdilem 16146 lgsne0 16157 lgsabs1 16158 lgsquadlem1 16196 lgsquadlem2 16197 isclwwlknx 16657 clwwlkn1 16659 |
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