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Mirrors > Home > MPE Home > Th. List > biantrud | Structured version Visualization version GIF version |
Description: A wff is equivalent to its conjunction with truth. (Contributed by NM, 2-Aug-1994.) (Proof shortened by Wolf Lammen, 23-Oct-2013.) |
Ref | Expression |
---|---|
biantrud.1 | ⊢ (𝜑 → 𝜓) |
Ref | Expression |
---|---|
biantrud | ⊢ (𝜑 → (𝜒 ↔ (𝜒 ∧ 𝜓))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | biantrud.1 | . 2 ⊢ (𝜑 → 𝜓) | |
2 | iba 530 | . 2 ⊢ (𝜓 → (𝜒 ↔ (𝜒 ∧ 𝜓))) | |
3 | 1, 2 | syl 17 | 1 ⊢ (𝜑 → (𝜒 ↔ (𝜒 ∧ 𝜓))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 208 ∧ wa 398 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
This theorem depends on definitions: df-bi 209 df-an 399 |
This theorem is referenced by: ifptru 1068 cad1 1617 raldifeq 4441 rexreusng 4619 posn 5639 elrnmpt1 5832 dfres3 5860 opelres 5861 fliftf 7070 eroveu 8394 ixpfi2 8824 elfi2 8880 dffi3 8897 cfss 9689 wunex2 10162 nnle1eq1 11670 nn0le0eq0 11928 ixxun 12757 ioopos 12816 injresinj 13161 hashle00 13764 prprrab 13834 xpcogend 14336 cnpart 14601 fz1f1o 15069 nndivdvds 15618 dvdsmultr2 15651 bitsmod 15787 sadadd 15818 sadass 15822 smuval2 15833 smumul 15844 pcmpt 16230 pcmpt2 16231 prmreclem2 16255 prmreclem5 16258 ramcl 16367 mrcidb2 16891 acsfn 16932 fncnvimaeqv 17372 latleeqj1 17675 resmndismnd 17975 pgpssslw 18741 subgdmdprd 19158 acsfn1p 19580 lssle0 19723 islpir2 20026 islinds3 20980 iscld4 21675 cncnpi 21888 cnprest2 21900 lmss 21908 isconn2 22024 dfconn2 22029 subislly 22091 lly1stc 22106 elptr 22183 txcn 22236 xkoinjcn 22297 tsmsres 22754 isxmet2d 22939 xmetgt0 22970 prdsxmetlem 22980 imasdsf1olem 22985 xblss2 23014 stdbdbl 23129 prdsxmslem2 23141 xrtgioo 23416 xrsxmet 23419 cnmpopc 23534 elpi1i 23652 minveclem7 24040 elovolmr 24079 ismbf 24231 mbfmax 24252 itg1val2 24287 mbfi1fseqlem4 24321 itgresr 24381 iblrelem 24393 iblpos 24395 rlimcnp 25545 rlimcnp2 25546 chpchtsum 25797 lgsneg 25899 lgsdilem 25902 2lgslem1a 25969 lmiinv 26580 isspthonpth 27532 s3wwlks2on 27737 clwlkclwwlk 27782 clwwlknonel 27876 clwwlknun 27893 eupth2lem2 28000 frgr3vlem2 28055 numclwwlk2lem1 28157 minvecolem7 28662 shle0 29221 mdsl2bi 30102 dmdbr5ati 30201 cdj3lem1 30213 eulerpartlemr 31634 subfacp1lem3 32431 satefvfmla1 32674 hfext 33646 bj-issetwt 34191 poimirlem25 34919 poimirlem26 34920 poimirlem27 34921 mblfinlem3 34933 mblfinlem4 34934 mbfresfi 34940 itg2addnclem 34945 itg2addnc 34948 heiborlem10 35100 dffunsALTV2 35919 dffunsALTV3 35920 dffunsALTV4 35921 elfunsALTV2 35928 elfunsALTV3 35929 elfunsALTV4 35930 elfunsALTV5 35931 dfdisjs2 35944 dfdisjs5 35947 eldisjs2 35958 ople0 36325 atlle0 36443 cdlemg10c 37777 cdlemg33c 37846 hdmap14lem13 39018 mrefg3 39312 radcnvrat 40653 2ffzoeq 43535 |
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