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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 968 | . 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 972 3anrot 973 3ancoma 975 3anan32 979 3ioran 983 3simpa 984 3pm3.2i 1165 pm3.2an3 1166 3jca 1167 3anbi123i 1178 3imp 1183 3anbi123d 1302 3anim123d 1309 an6 1311 19.26-3an 1471 hb3an 1538 nf3an 1554 nf3and 1557 eeeanv 1921 sb3an 1946 mopick2 2097 r19.26-3 2596 3reeanv 2636 ceqsex3v 2768 ceqsex4v 2769 ceqsex8v 2771 sbc3an 3012 elin3 3313 rexdifpr 3604 raltpg 3629 tpss 3738 dfopg 3756 opeq1 3758 opeq2 3759 opm 4212 otth2 4219 poirr 4285 po3nr 4288 wepo 4337 wetrep 4338 rabxp 4641 brinxp2 4671 brinxp 4672 sotri2 5001 sotri3 5002 f1orn 5442 dff1o6 5744 isosolem 5792 oprabid 5874 caovimo 6035 elovmpo 6039 dfxp3 6162 nnaord 6477 fiintim 6894 prmuloc 7507 ltrelxr 7959 rexuz2 9519 ltxr 9711 elixx3g 9837 elioo4g 9870 elioopnf 9903 elioomnf 9904 elicopnf 9905 elxrge0 9914 divelunit 9938 elfz2 9951 elfzuzb 9954 uzsplit 10027 fznn0 10048 elfzmlbp 10067 elfzo2 10085 fzolb2 10089 fzouzsplit 10114 ssfzo12bi 10160 fzind2 10174 dfrp2 10199 abs2dif 11048 sumeq2 11300 divalgb 11862 divgcdz 11904 rplpwr 11960 nnwosdc 11972 cncongr1 12035 pythagtriplem2 12198 pythagtrip 12215 isbasis3g 12684 lmfval 12832 lmbr 12853 lmbr2 12854 xmeterval 13075 xmeter 13076 cnbl0 13174 cnblcld 13175 limcrcl 13267 bd3an 13712 |
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