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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 1967 r3al 2588 ceqsex2 2857 ceqsex3v 2859 ceqsex4v 2860 ceqsex6v 2861 ceqsex8v 2862 eldifpr 3721 rexdifpr 3722 trel3 4221 sowlin 4446 dff1o4 5627 mpoxopovel 6485 dfsmo2 6531 ecopovtrn 6879 ecopovtrng 6882 elixp2 6950 elixp 6953 mptelixpg 6982 eqinfti 7324 distrnqg 7718 recmulnqg 7722 ltexnqq 7739 enq0tr 7765 distrnq0 7790 genpdflem 7838 distrlem1prl 7913 distrlem1pru 7914 divmulasscomap 8987 muldivdirap 8998 divmuldivap 9003 prime 9695 eluz2 9877 raluz2 9929 elixx1 10249 elixx3g 10253 elioo2 10273 elioo5 10285 elicc4 10292 iccneg 10341 icoshft 10342 elfz1 10366 elfz 10367 elfz2 10368 elfzm11 10447 elfz2nn0 10468 elfzo2 10506 elfzo3 10520 lbfzo0 10541 fzind2 10607 zmodid2 10738 swrdccatin1 11442 swrdccat 11452 redivap 11584 imdivap 11591 maxleast 11923 cosmul 12456 bitsval 12654 bitsmod 12667 bitscmp 12669 dfgcd2 12735 lcmneg 12796 coprmgcdb 12810 divgcdcoprmex 12824 cncongr1 12825 cncongr2 12826 difsqpwdvds 13061 elgz 13094 xpsfrnel 13608 xpsfrnel2 13610 mgmsscl 13624 ismhm 13716 mhmpropd 13721 issubm 13727 issubg 13926 eqglact 13978 eqgid 13979 ecqusaddd 13991 ecqusaddcl 13992 isrng 14173 issrg 14208 srglmhm 14236 srgrmhm 14237 isring 14243 ringlghm 14304 dfrhm2 14399 issubrng 14445 issubrg3 14493 islmod 14565 islssm 14631 islssmg 14632 lsspropdg 14705 qusmulrng 14806 lmbrf 15206 uptx 15265 txcn 15266 xmetec 15428 bl2ioo 15541 lgsmodeq 16044 lgsmulsqcoprm 16045 uspgredg2v 16342 wksfval 16443 wlkeq 16475 isclwwlk 16515 clwwlkbp 16516 isclwwlknx 16537 clwwlknp 16538 clwwlkn1 16539 clwwlkn2 16542 clwwlknonel 16553 findset 16841 |
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