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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 399. (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 967 | . 2 |
5 | 1, 2 | wa 103 | . . 3 |
6 | 5, 3 | wa 103 | . 2 |
7 | 4, 6 | wb 104 | 1 |
Colors of variables: wff set class |
This definition is referenced by: 3anass 971 3anrot 972 3ancoma 974 3anan32 978 3ioran 982 3simpa 983 3pm3.2i 1164 pm3.2an3 1165 3jca 1166 3anbi123i 1177 3imp 1182 3anbi123d 1301 3anim123d 1308 an6 1310 19.26-3an 1470 hb3an 1537 nf3an 1553 nf3and 1556 eeeanv 1920 sb3an 1945 mopick2 2096 r19.26-3 2594 3reeanv 2634 ceqsex3v 2763 ceqsex4v 2764 ceqsex8v 2766 sbc3an 3007 elin3 3308 rexdifpr 3598 raltpg 3623 tpss 3732 dfopg 3750 opeq1 3752 opeq2 3753 opm 4206 otth2 4213 poirr 4279 po3nr 4282 wepo 4331 wetrep 4332 rabxp 4635 brinxp2 4665 brinxp 4666 sotri2 4995 sotri3 4996 f1orn 5436 dff1o6 5738 isosolem 5786 oprabid 5865 caovimo 6026 elovmpo 6033 dfxp3 6154 nnaord 6468 fiintim 6885 prmuloc 7498 ltrelxr 7950 rexuz2 9510 ltxr 9702 elixx3g 9828 elioo4g 9861 elioopnf 9894 elioomnf 9895 elicopnf 9896 elxrge0 9905 divelunit 9929 elfz2 9942 elfzuzb 9945 uzsplit 10017 fznn0 10038 elfzmlbp 10057 elfzo2 10075 fzolb2 10079 fzouzsplit 10104 ssfzo12bi 10150 fzind2 10164 dfrp2 10189 abs2dif 11034 sumeq2 11286 divalgb 11847 divgcdz 11889 rplpwr 11945 cncongr1 12014 pythagtriplem2 12175 pythagtrip 12192 isbasis3g 12585 lmfval 12733 lmbr 12754 lmbr2 12755 xmeterval 12976 xmeter 12977 cnbl0 13075 cnblcld 13076 limcrcl 13168 bd3an 13547 |
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