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| Mirrors > Home > ILE Home > Th. List > elex2 | Unicode version | ||
| Description: If a class contains another class, then it contains some set. (Contributed by Alan Sare, 25-Sep-2011.) |
| Ref | Expression |
|---|---|
| elex2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eleq1a 2301 |
. . 3
| |
| 2 | 1 | alrimiv 1920 |
. 2
|
| 3 | elisset 2814 |
. 2
| |
| 4 | exim 1645 |
. 2
| |
| 5 | 2, 3, 4 | sylc 62 |
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-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-v 2801 |
| This theorem is referenced by: snmg 3785 oprcl 3881 brm 4134 ss1o0el1 4281 exss 4313 onintrab2im 4610 regexmidlemm 4624 reldmm 4942 dmxpid 4945 acexmidlem2 6004 frecabcl 6551 ixpm 6885 en1m 6965 dom1o 6985 dom1oi 6986 enm 6987 ssfilem 7045 fin0 7055 fin0or 7056 diffitest 7057 diffisn 7063 infm 7077 inffiexmid 7079 ctssdc 7291 omct 7295 ctssexmid 7328 exmidfodomrlemr 7391 exmidfodomrlemrALT 7392 acnrcl 7394 exmidaclem 7401 iftrueb01 7419 pw1if 7421 caucvgsrlemasr 7988 suplocsrlempr 8005 gtso 8236 sup3exmid 9115 indstr 9800 negm 9822 fzm 10246 fzom 10373 rexfiuz 11516 r19.2uz 11520 resqrexlemgt0 11547 climuni 11820 bezoutlembi 12542 nninfct 12578 lcmgcdlem 12615 pcprecl 12828 pc2dvds 12869 4sqlem13m 12942 nninfdclemcl 13035 dfgrp3m 13648 issubg2m 13742 issubgrpd2 13743 issubg3 13745 issubg4m 13746 grpissubg 13747 subgintm 13751 nmzsubg 13763 ghmrn 13810 ghmpreima 13819 dvdsr02 14085 01eq0ring 14169 subrgugrp 14220 lmodfopnelem1 14304 rmodislmodlem 14330 rmodislmod 14331 lss1 14342 lsssubg 14357 islss3 14359 islss4 14362 lss1d 14363 lssintclm 14364 dflidl2rng 14461 lidlsubg 14466 cnsubglem 14559 tgioo 15244 elply2 15425 wlkvtxm 16086 pw1nct 16456 nninfall 16463 nnnninfen 16475 |
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