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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 1006 | . 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 1004 |
| 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 1006 |
| This theorem is referenced by: 3anrot 1009 3anan12 1016 anandi3 1017 3biant1d 1391 3exdistr 1964 r3al 2576 ceqsex2 2844 ceqsex3v 2846 ceqsex4v 2847 ceqsex6v 2848 ceqsex8v 2849 eldifpr 3696 rexdifpr 3697 trel3 4195 sowlin 4417 dff1o4 5591 mpoxopovel 6407 dfsmo2 6453 ecopovtrn 6801 ecopovtrng 6804 elixp2 6871 elixp 6874 mptelixpg 6903 eqinfti 7219 distrnqg 7607 recmulnqg 7611 ltexnqq 7628 enq0tr 7654 distrnq0 7679 genpdflem 7727 distrlem1prl 7802 distrlem1pru 7803 divmulasscomap 8876 muldivdirap 8887 divmuldivap 8892 prime 9579 eluz2 9761 raluz2 9813 elixx1 10132 elixx3g 10136 elioo2 10156 elioo5 10168 elicc4 10175 iccneg 10224 icoshft 10225 elfz1 10248 elfz 10249 elfz2 10250 elfzm11 10326 elfz2nn0 10347 elfzo2 10385 elfzo3 10399 lbfzo0 10420 fzind2 10486 zmodid2 10615 swrdccatin1 11310 swrdccat 11320 redivap 11452 imdivap 11459 maxleast 11791 cosmul 12324 bitsval 12522 bitsmod 12535 bitscmp 12537 dfgcd2 12603 lcmneg 12664 coprmgcdb 12678 divgcdcoprmex 12692 cncongr1 12693 cncongr2 12694 difsqpwdvds 12929 elgz 12962 xpsfrnel 13445 xpsfrnel2 13447 mgmsscl 13462 ismhm 13562 mhmpropd 13567 issubm 13573 issubg 13778 eqglact 13830 eqgid 13831 ecqusaddd 13843 ecqusaddcl 13844 isrng 13966 issrg 13997 srglmhm 14025 srgrmhm 14026 isring 14032 ringlghm 14093 dfrhm2 14187 issubrng 14232 issubrg3 14280 islmod 14324 islssm 14390 islssmg 14391 lsspropdg 14464 qusmulrng 14565 lmbrf 14958 uptx 15017 txcn 15018 xmetec 15180 bl2ioo 15293 lgsmodeq 15793 lgsmulsqcoprm 15794 uspgredg2v 16091 wksfval 16192 wlkeq 16224 isclwwlk 16264 clwwlkbp 16265 isclwwlknx 16286 clwwlknp 16287 clwwlkn1 16288 clwwlkn2 16291 clwwlknonel 16302 findset 16591 |
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