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| Mirrors > Home > ILE Home > Th. List > 3anass | GIF version | ||
| Description: Associative law for triple conjunction. (Contributed by NM, 8-Apr-1994.) |
| Ref | Expression |
|---|---|
| 3anass | ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒) ↔ (𝜑 ∧ (𝜓 ∧ 𝜒))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-3an 1007 | . 2 ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒) ↔ ((𝜑 ∧ 𝜓) ∧ 𝜒)) | |
| 2 | anass 401 | . 2 ⊢ (((𝜑 ∧ 𝜓) ∧ 𝜒) ↔ (𝜑 ∧ (𝜓 ∧ 𝜒))) | |
| 3 | 1, 2 | bitri 184 | 1 ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒) ↔ (𝜑 ∧ (𝜓 ∧ 𝜒))) |
| Colors of variables: wff set class |
| Syntax hints: ∧ wa 104 ↔ wb 105 ∧ w3a 1005 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 |
| This theorem is referenced by: 3anrot 1010 3anan12 1017 anandi3 1018 3biant1d 1392 3exdistr 1964 r3al 2577 ceqsex2 2845 ceqsex3v 2847 ceqsex4v 2848 ceqsex6v 2849 ceqsex8v 2850 eldifpr 3700 rexdifpr 3701 trel3 4200 sowlin 4423 dff1o4 5600 mpoxopovel 6450 dfsmo2 6496 ecopovtrn 6844 ecopovtrng 6847 elixp2 6914 elixp 6917 mptelixpg 6946 eqinfti 7279 distrnqg 7667 recmulnqg 7671 ltexnqq 7688 enq0tr 7714 distrnq0 7739 genpdflem 7787 distrlem1prl 7862 distrlem1pru 7863 divmulasscomap 8935 muldivdirap 8946 divmuldivap 8951 prime 9640 eluz2 9822 raluz2 9874 elixx1 10193 elixx3g 10197 elioo2 10217 elioo5 10229 elicc4 10236 iccneg 10285 icoshft 10286 elfz1 10310 elfz 10311 elfz2 10312 elfzm11 10388 elfz2nn0 10409 elfzo2 10447 elfzo3 10461 lbfzo0 10482 fzind2 10548 zmodid2 10677 swrdccatin1 11372 swrdccat 11382 redivap 11514 imdivap 11521 maxleast 11853 cosmul 12386 bitsval 12584 bitsmod 12597 bitscmp 12599 dfgcd2 12665 lcmneg 12726 coprmgcdb 12740 divgcdcoprmex 12754 cncongr1 12755 cncongr2 12756 difsqpwdvds 12991 elgz 13024 xpsfrnel 13507 xpsfrnel2 13509 mgmsscl 13524 ismhm 13624 mhmpropd 13629 issubm 13635 issubg 13840 eqglact 13892 eqgid 13893 ecqusaddd 13905 ecqusaddcl 13906 isrng 14028 issrg 14059 srglmhm 14087 srgrmhm 14088 isring 14094 ringlghm 14155 dfrhm2 14249 issubrng 14294 issubrg3 14342 islmod 14387 islssm 14453 islssmg 14454 lsspropdg 14527 qusmulrng 14628 lmbrf 15026 uptx 15085 txcn 15086 xmetec 15248 bl2ioo 15361 lgsmodeq 15864 lgsmulsqcoprm 15865 uspgredg2v 16162 wksfval 16263 wlkeq 16295 isclwwlk 16335 clwwlkbp 16336 isclwwlknx 16357 clwwlknp 16358 clwwlkn1 16359 clwwlkn2 16362 clwwlknonel 16373 findset 16661 |
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