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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 3680 |
. 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 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-11 1554 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-sn 3675 |
| This theorem is referenced by: dmsnsnsng 5214 cnvsng 5222 ressn 5277 f1osng 5626 fsng 5820 fsn2g 5822 funopsn 5830 fnressn 5840 fvsng 5850 2nd1st 6343 dfmpo 6388 cnvf1olem 6389 tpostpos 6430 tfrlemi1 6498 tfr1onlemaccex 6514 tfrcllemaccex 6527 elixpsn 6904 ixpsnf1o 6905 en1bg 6974 mapsnen 6986 xpassen 7014 fztp 10313 fzsuc2 10314 fseq1p1m1 10329 fseq1m1p1 10330 zfz1isolemsplit 11103 zfz1isolem1 11105 s1val 11195 s1eq 11197 s1prc 11201 fsumm1 11979 fprodm1 12161 divalgmod 12490 ennnfonelemg 13026 ennnfonelemp1 13029 ennnfonelem1 13030 ennnfonelemnn0 13045 setsvalg 13114 strsetsid 13117 imasex 13390 imasival 13391 imasaddvallemg 13400 mulgval 13711 isunitd 14123 lspsnneg 14437 lspsnsub 14438 lmodindp1 14445 lidl0 14506 rsp0 14510 ridl0 14527 zrhrhmb 14639 znval 14653 psrval 14683 txdis 15004 upgr1een 15978 1loopgruspgr 16157 wkslem1 16174 wkslem2 16175 iswlk 16177 loopclwwlkn1b 16273 clwwlkn1loopb 16274 eupth2lem3lem3fi 16324 |
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