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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 1616 raldifeq 4442 rexreusng 4620 posn 5640 elrnmpt1 5833 dfres3 5861 opelres 5862 fliftf 7071 eroveu 8395 ixpfi2 8825 elfi2 8881 dffi3 8898 cfss 9690 wunex2 10163 nnle1eq1 11670 nn0le0eq0 11928 ixxun 12757 ioopos 12816 injresinj 13161 hashle00 13764 prprrab 13834 xpcogend 14337 cnpart 14602 fz1f1o 15070 nndivdvds 15619 dvdsmultr2 15652 bitsmod 15788 sadadd 15819 sadass 15823 smuval2 15834 smumul 15845 pcmpt 16231 pcmpt2 16232 prmreclem2 16256 prmreclem5 16259 ramcl 16368 mrcidb2 16892 acsfn 16933 fncnvimaeqv 17373 latleeqj1 17676 resmndismnd 17976 pgpssslw 18742 subgdmdprd 19159 acsfn1p 19581 lssle0 19724 islpir2 20027 islinds3 20981 iscld4 21676 cncnpi 21889 cnprest2 21901 lmss 21909 isconn2 22025 dfconn2 22030 subislly 22092 lly1stc 22107 elptr 22184 txcn 22237 xkoinjcn 22298 tsmsres 22755 isxmet2d 22940 xmetgt0 22971 prdsxmetlem 22981 imasdsf1olem 22986 xblss2 23015 stdbdbl 23130 prdsxmslem2 23142 xrtgioo 23417 xrsxmet 23420 cnmpopc 23535 elpi1i 23653 minveclem7 24041 elovolmr 24080 ismbf 24232 mbfmax 24253 itg1val2 24288 mbfi1fseqlem4 24322 itgresr 24382 iblrelem 24394 iblpos 24396 rlimcnp 25546 rlimcnp2 25547 chpchtsum 25798 lgsneg 25900 lgsdilem 25903 2lgslem1a 25970 lmiinv 26581 isspthonpth 27533 s3wwlks2on 27738 clwlkclwwlk 27783 clwwlknonel 27877 clwwlknun 27894 eupth2lem2 28001 frgr3vlem2 28056 numclwwlk2lem1 28158 minvecolem7 28663 shle0 29222 mdsl2bi 30103 dmdbr5ati 30202 cdj3lem1 30214 eulerpartlemr 31636 subfacp1lem3 32433 satefvfmla1 32676 hfext 33648 bj-issetwt 34193 poimirlem25 34921 poimirlem26 34922 poimirlem27 34923 mblfinlem3 34935 mblfinlem4 34936 mbfresfi 34942 itg2addnclem 34947 itg2addnc 34950 heiborlem10 35102 dffunsALTV2 35921 dffunsALTV3 35922 dffunsALTV4 35923 elfunsALTV2 35930 elfunsALTV3 35931 elfunsALTV4 35932 elfunsALTV5 35933 dfdisjs2 35946 dfdisjs5 35949 eldisjs2 35960 ople0 36327 atlle0 36445 cdlemg10c 37779 cdlemg33c 37848 hdmap14lem13 39020 mrefg3 39311 radcnvrat 40652 2ffzoeq 43535 |
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