| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 |
| This proof depends on syntax axioms: ∧ wa 104 ↔ wb 105 ∧ w3a 1009 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 |
| This proof depends on definitions: df-bi 117 df-3an 1011 |
| This theorem is used by: 3anrot 1014 3anan12 1021 anandi3 1022 3biant1d 1396 3exdistr 1971 r3al 2594 ceqsex2 2863 ceqsex3v 2865 ceqsex4v 2866 ceqsex6v 2867 ceqsex8v 2868 eldifpr 3736 rexdifpr 3737 trel3 4239 sowlin 4467 dff1o4 5650 mpoxopovel 6517 dfsmo2 6563 ecopovtrn 6911 ecopovtrng 6914 elixp2 6990 elixp 6993 mptelixpg 7022 eqinfti 7366 distrnqg 7760 recmulnqg 7764 ltexnqq 7781 enq0tr 7807 distrnq0 7832 genpdflem 7880 distrlem1prl 7955 distrlem1pru 7956 divmulasscomap 9034 muldivdirap 9045 divmuldivap 9050 prime 9755 eluz2 9942 raluz2 9994 elixx1 10315 elixx3g 10319 elioo2 10339 elioo5 10351 elicc4 10358 iccneg 10407 icoshft 10408 elfz1 10432 elfz 10433 elfz2 10434 elfzm11 10514 elfz2nn0 10535 elfzo2 10573 elfzo3 10587 lbfzo0 10608 fzind2 10674 zmodid2 10809 swrdccatin1 11518 swrdccat 11528 redivap 11660 imdivap 11667 maxleast 12001 cosmul 12536 bitsval 12734 bitsmod 12747 bitscmp 12749 dfgcd2 12815 lcmneg 12876 coprmgcdb 12890 divgcdcoprmex 12904 cncongr1 12905 cncongr2 12906 difsqpwdvds 13145 elgz 13178 xpsfrnel 13723 xpsfrnel2 13725 mgmsscl 13739 ismhm 13826 mhmpropd 13831 issubm 13837 issubg 14034 eqglact 14086 eqgid 14087 ecqusaddd 14099 ecqusaddcl 14100 isrng 14339 issrg 14375 srglmhm 14403 srgrmhm 14404 isring 14410 ringlghm 14472 dfrhm2 14569 issubrng 14615 issubrg3 14663 islmod 14735 islssm 14802 islssmg 14803 lsspropdg 14876 qusmulrng 14977 lmbrf 15458 uptx 15517 txcn 15518 xmetec 15680 bl2ioo 15793 lgsmodeq 16386 lgsmulsqcoprm 16387 uspgredg2v 16684 wksfval 16785 wlkeq 16817 isclwwlk 16857 clwwlkbp 16858 isclwwlknx 16879 clwwlknp 16880 clwwlkn1 16881 clwwlkn2 16884 clwwlknonel 16895 findset 17193 |
| Copyright terms: Public domain | W3C validator |