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| Mirrors > Home > ILE Home > Th. List > sneqd | Unicode version | ||
| Description: Equality deduction for singletons. (Contributed by NM, 22-Jan-2004.) |
| Ref | Expression |
|---|---|
| sneqd.1 |
|
| Ref | Expression |
|---|---|
| sneqd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sneqd.1 |
. 2
| |
| 2 | sneq 3678 |
. 2
| |
| 3 | 1, 2 | syl 14 |
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 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-11 1552 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-sn 3673 |
| This theorem is referenced by: dmsnsnsng 5212 cnvsng 5220 ressn 5275 f1osng 5622 fsng 5816 funopsn 5825 fnressn 5835 fvsng 5845 2nd1st 6338 dfmpo 6383 cnvf1olem 6384 tpostpos 6425 tfrlemi1 6493 tfr1onlemaccex 6509 tfrcllemaccex 6522 elixpsn 6899 ixpsnf1o 6900 en1bg 6969 mapsnen 6981 xpassen 7009 fztp 10306 fzsuc2 10307 fseq1p1m1 10322 fseq1m1p1 10323 zfz1isolemsplit 11095 zfz1isolem1 11097 s1val 11187 s1eq 11189 s1prc 11193 fsumm1 11970 fprodm1 12152 divalgmod 12481 ennnfonelemg 13017 ennnfonelemp1 13020 ennnfonelem1 13021 ennnfonelemnn0 13036 setsvalg 13105 strsetsid 13108 imasex 13381 imasival 13382 imasaddvallemg 13391 mulgval 13702 isunitd 14113 lspsnneg 14427 lspsnsub 14428 lmodindp1 14435 lidl0 14496 rsp0 14500 ridl0 14517 zrhrhmb 14629 znval 14643 psrval 14673 txdis 14994 upgr1een 15968 1loopgruspgr 16114 wkslem1 16131 wkslem2 16132 iswlk 16134 loopclwwlkn1b 16228 clwwlkn1loopb 16229 |
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