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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 1011 | . 2 ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒) ↔ ((𝜑 ∧ 𝜓) ∧ 𝜒)) | |
| 2 | anass 405 | . 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 1009 |
| 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 1011 |
| This theorem is referenced by: 3anrot 1014 3anan12 1021 anandi3 1022 3biant1d 1396 3exdistr 1971 r3al 2594 ceqsex2 2863 ceqsex3v 2865 ceqsex4v 2866 ceqsex6v 2867 ceqsex8v 2868 eldifpr 3732 rexdifpr 3733 trel3 4232 sowlin 4460 dff1o4 5642 mpoxopovel 6502 dfsmo2 6548 ecopovtrn 6896 ecopovtrng 6899 elixp2 6974 elixp 6977 mptelixpg 7006 eqinfti 7350 distrnqg 7744 recmulnqg 7748 ltexnqq 7765 enq0tr 7791 distrnq0 7816 genpdflem 7864 distrlem1prl 7939 distrlem1pru 7940 divmulasscomap 9016 muldivdirap 9027 divmuldivap 9032 prime 9724 eluz2 9906 raluz2 9958 elixx1 10278 elixx3g 10282 elioo2 10302 elioo5 10314 elicc4 10321 iccneg 10370 icoshft 10371 elfz1 10395 elfz 10396 elfz2 10397 elfzm11 10476 elfz2nn0 10497 elfzo2 10535 elfzo3 10549 lbfzo0 10570 fzind2 10636 zmodid2 10767 swrdccatin1 11475 swrdccat 11485 redivap 11617 imdivap 11624 maxleast 11957 cosmul 12490 bitsval 12688 bitsmod 12701 bitscmp 12703 dfgcd2 12769 lcmneg 12830 coprmgcdb 12844 divgcdcoprmex 12858 cncongr1 12859 cncongr2 12860 difsqpwdvds 13095 elgz 13128 xpsfrnel 13642 xpsfrnel2 13644 mgmsscl 13658 ismhm 13745 mhmpropd 13750 issubm 13756 issubg 13953 eqglact 14005 eqgid 14006 ecqusaddd 14018 ecqusaddcl 14019 isrng 14208 issrg 14243 srglmhm 14271 srgrmhm 14272 isring 14278 ringlghm 14339 dfrhm2 14434 issubrng 14480 issubrg3 14528 islmod 14600 islssm 14666 islssmg 14667 lsspropdg 14740 qusmulrng 14841 lmbrf 15239 uptx 15298 txcn 15299 xmetec 15461 bl2ioo 15574 lgsmodeq 16078 lgsmulsqcoprm 16079 uspgredg2v 16376 wksfval 16477 wlkeq 16509 isclwwlk 16549 clwwlkbp 16550 isclwwlknx 16571 clwwlknp 16572 clwwlkn1 16573 clwwlkn2 16576 clwwlknonel 16587 findset 16885 |
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