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| Description: Associative law for conjunction. Theorem *4.32 of [WhiteheadRussell] p. 118. (Contributed by NM, 5-Aug-1993.) (Proof shortened by Wolf Lammen, 24-Nov-2012.) |
| Ref | Expression |
|---|---|
| anass |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | id 19 |
. . 3
| |
| 2 | 1 | anassrs 404 |
. 2
|
| 3 | id 19 |
. . 3
| |
| 4 | 3 | anasss 403 |
. 2
|
| 5 | 2, 4 | impbii 126 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| 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 |
| This theorem is referenced by: bianass 473 mpan10 478 an12 567 an32 568 an13 569 an31 570 an4 592 3anass 1013 sbidm 1904 4exdistr 1972 2sb5 2043 2sb5rf 2049 sbel2x 2058 r2exf 2568 r19.41 2706 ceqsex3v 2865 ceqsrex2v 2958 rexrab 2989 rexrab2 2993 rexss 3315 inass 3441 difin2 3493 difrab 3507 reupick3 3518 inssdif0imOLD 3593 rexdifpr 3736 rexdifsn 3844 unidif0 4302 bnd2 4308 eqvinop 4381 copsexg 4382 uniuni 4595 rabxp 4810 elvvv 4836 rexiunxp 4920 resopab2 5108 ssrnres 5228 elxp4 5273 elxp5 5274 cnvresima 5275 mptpreima 5279 coass 5304 dff1o2 5642 eqfnfv3 5802 isoini 6018 f1oiso 6026 oprabid 6111 dfoprab2 6129 mpoeq123 6141 mpomptx 6173 resoprab2 6179 ovi3 6220 oprabex3 6356 spc2ed 6463 f1od2 6465 rexsupp 6487 brtpos2 6516 mapsnend 7093 mapsnen 7094 xpsnen 7113 xpcomco 7118 xpassen 7122 ltexpi 7698 enq0enq 7792 enq0tr 7795 prnmaxl 7849 prnminu 7850 genpdflem 7868 ltexprlemm 7961 suplocsrlemb 8167 axaddf 8229 axmulf 8230 rexuz 9963 rexuz2 9964 rexrp 10060 elixx3g 10286 elfz2 10401 fzdifsuc 10471 fzind2 10641 sseqn 11262 hashfibclem 11265 divalgb 12675 gcdass 12775 nnwosdc 12799 lcmass 12846 isprm2 12878 infpn2 13330 fngzsum 13691 gzsumvalx 13692 issubg3 13978 dfrhm2 14444 ntreq0 15216 tx1cn 15353 tx2cn 15354 blres 15518 metrest 15590 elcncf1di 15663 dedekindicclemicc 15716 fsumdvdsmul 16088 lgsquadlem1 16179 lgsquadlem2 16180 wlk1walkdom 16583 isclwwlk 16618 isclwwlknx 16640 clwwlknonel 16656 clwwlknon2x 16659 iseupthf1o 16672 alsanmo 17125 ralsanmo 17126 2alsraln0m 17132 |
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