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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 1004 | . 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 1002 |
| 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 1004 |
| This theorem is referenced by: 3anrot 1007 3anan12 1014 anandi3 1015 3biant1d 1389 3exdistr 1962 r3al 2574 ceqsex2 2841 ceqsex3v 2843 ceqsex4v 2844 ceqsex6v 2845 ceqsex8v 2846 eldifpr 3693 rexdifpr 3694 trel3 4190 sowlin 4411 dff1o4 5582 mpoxopovel 6393 dfsmo2 6439 ecopovtrn 6787 ecopovtrng 6790 elixp2 6857 elixp 6860 mptelixpg 6889 eqinfti 7198 distrnqg 7585 recmulnqg 7589 ltexnqq 7606 enq0tr 7632 distrnq0 7657 genpdflem 7705 distrlem1prl 7780 distrlem1pru 7781 divmulasscomap 8854 muldivdirap 8865 divmuldivap 8870 prime 9557 eluz2 9739 raluz2 9786 elixx1 10105 elixx3g 10109 elioo2 10129 elioo5 10141 elicc4 10148 iccneg 10197 icoshft 10198 elfz1 10221 elfz 10222 elfz2 10223 elfzm11 10299 elfz2nn0 10320 elfzo2 10358 elfzo3 10372 lbfzo0 10393 fzind2 10457 zmodid2 10586 swrdccatin1 11273 swrdccat 11283 redivap 11401 imdivap 11408 maxleast 11740 cosmul 12272 bitsval 12470 bitsmod 12483 bitscmp 12485 dfgcd2 12551 lcmneg 12612 coprmgcdb 12626 divgcdcoprmex 12640 cncongr1 12641 cncongr2 12642 difsqpwdvds 12877 elgz 12910 xpsfrnel 13393 xpsfrnel2 13395 mgmsscl 13410 ismhm 13510 mhmpropd 13515 issubm 13521 issubg 13726 eqglact 13778 eqgid 13779 ecqusaddd 13791 ecqusaddcl 13792 isrng 13913 issrg 13944 srglmhm 13972 srgrmhm 13973 isring 13979 ringlghm 14040 dfrhm2 14134 issubrng 14179 issubrg3 14227 islmod 14271 islssm 14337 islssmg 14338 lsspropdg 14411 qusmulrng 14512 lmbrf 14905 uptx 14964 txcn 14965 xmetec 15127 bl2ioo 15240 lgsmodeq 15740 lgsmulsqcoprm 15741 uspgredg2v 16035 wksfval 16068 wlkeq 16100 isclwwlk 16137 clwwlkbp 16138 isclwwlknx 16158 clwwlknp 16159 clwwlkn1 16160 clwwlkn2 16163 findset 16391 |
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