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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 1965 r3al 2586 ceqsex2 2855 ceqsex3v 2857 ceqsex4v 2858 ceqsex6v 2859 ceqsex8v 2860 eldifpr 3716 rexdifpr 3717 trel3 4216 sowlin 4441 dff1o4 5622 mpoxopovel 6472 dfsmo2 6518 ecopovtrn 6866 ecopovtrng 6869 elixp2 6937 elixp 6940 mptelixpg 6969 eqinfti 7311 distrnqg 7702 recmulnqg 7706 ltexnqq 7723 enq0tr 7749 distrnq0 7774 genpdflem 7822 distrlem1prl 7897 distrlem1pru 7898 divmulasscomap 8970 muldivdirap 8981 divmuldivap 8986 prime 9677 eluz2 9859 raluz2 9911 elixx1 10230 elixx3g 10234 elioo2 10254 elioo5 10266 elicc4 10273 iccneg 10322 icoshft 10323 elfz1 10347 elfz 10348 elfz2 10349 elfzm11 10425 elfz2nn0 10446 elfzo2 10484 elfzo3 10498 lbfzo0 10519 fzind2 10585 zmodid2 10714 swrdccatin1 11417 swrdccat 11427 redivap 11559 imdivap 11566 maxleast 11898 cosmul 12431 bitsval 12629 bitsmod 12642 bitscmp 12644 dfgcd2 12710 lcmneg 12771 coprmgcdb 12785 divgcdcoprmex 12799 cncongr1 12800 cncongr2 12801 difsqpwdvds 13036 elgz 13069 xpsfrnel 13557 xpsfrnel2 13559 mgmsscl 13574 ismhm 13674 mhmpropd 13679 issubm 13685 issubg 13890 eqglact 13942 eqgid 13943 ecqusaddd 13955 ecqusaddcl 13956 isrng 14078 issrg 14109 srglmhm 14137 srgrmhm 14138 isring 14144 ringlghm 14205 dfrhm2 14299 issubrng 14344 issubrg3 14392 islmod 14439 islssm 14505 islssmg 14506 lsspropdg 14579 qusmulrng 14680 lmbrf 15080 uptx 15139 txcn 15140 xmetec 15302 bl2ioo 15415 lgsmodeq 15918 lgsmulsqcoprm 15919 uspgredg2v 16216 wksfval 16317 wlkeq 16349 isclwwlk 16389 clwwlkbp 16390 isclwwlknx 16411 clwwlknp 16412 clwwlkn1 16413 clwwlkn2 16416 clwwlknonel 16427 findset 16715 |
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