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| Mirrors > Home > ILE Home > Th. List > df-3an | Unicode version | ||
| Description: Define conjunction ('and') of 3 wff.s. Definition *4.34 of [WhiteheadRussell] p. 118. This abbreviation reduces the number of parentheses and emphasizes that the order of bracketing is not important by virtue of the associative law anass 401. (Contributed by NM, 8-Apr-1994.) | 
| Ref | Expression | 
|---|---|
| df-3an | 
 | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | wph | 
. . 3
 | |
| 2 | wps | 
. . 3
 | |
| 3 | wch | 
. . 3
 | |
| 4 | 1, 2, 3 | w3a 980 | 
. 2
 | 
| 5 | 1, 2 | wa 104 | 
. . 3
 | 
| 6 | 5, 3 | wa 104 | 
. 2
 | 
| 7 | 4, 6 | wb 105 | 
1
 | 
| Colors of variables: wff set class | 
| This definition is referenced by: 3anass 984 3anrot 985 3ancoma 987 3anan32 991 3ioran 995 3simpa 996 3pm3.2i 1177 pm3.2an3 1178 3jca 1179 3anbi123i 1190 3imp 1195 3anbi123d 1323 3anim123d 1330 an6 1332 19.26-3an 1497 hb3an 1564 nf3an 1580 nf3and 1583 eeeanv 1952 sb3an 1977 mopick2 2128 r19.26-3 2627 3reeanv 2668 ceqsex3v 2806 ceqsex4v 2807 ceqsex8v 2809 sbc3an 3051 elin3 3354 rexdifpr 3650 raltpg 3675 tpss 3788 dfopg 3806 opeq1 3808 opeq2 3809 opm 4267 otth2 4274 poirr 4342 po3nr 4345 wepo 4394 wetrep 4395 rabxp 4700 brinxp2 4730 brinxp 4731 sotri2 5067 sotri3 5068 f1orn 5514 dff1o6 5823 isosolem 5871 oprabid 5954 caovimo 6117 elovmpo 6122 elovmporab 6123 elovmporab1w 6124 dfxp3 6252 nnaord 6567 fiintim 6992 prmuloc 7633 ltrelxr 8087 rexuz2 9655 ltxr 9850 elixx3g 9976 elioo4g 10009 elioopnf 10042 elioomnf 10043 elicopnf 10044 elxrge0 10053 divelunit 10077 elfz2 10090 elfzuzb 10094 uzsplit 10167 fznn0 10188 elfzmlbp 10207 elfzo2 10225 fzolb2 10230 fzouzsplit 10255 ssfzo12bi 10301 fzind2 10315 dfrp2 10353 abs2dif 11271 sumeq2 11524 divalgb 12090 bitsval2 12109 divgcdz 12138 rplpwr 12194 nnwosdc 12206 cncongr1 12271 pythagtriplem2 12435 pythagtrip 12452 xpscf 12990 issgrpd 13055 issubm2 13105 issubg3 13322 resgrpisgrp 13325 eqgval 13353 eqger 13354 eqgabl 13460 qusecsub 13461 rnglz 13501 rngpropd 13511 ringpropd 13594 ringrghm 13618 zndvds 14205 znleval 14209 znleval2 14210 isbasis3g 14282 lmfval 14428 lmbr 14449 lmbr2 14450 xmeterval 14671 xmeter 14672 cnbl0 14770 cnblcld 14771 limcrcl 14894 gausslemma2dlem1a 15299 bd3an 15476 | 
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