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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 5998 frecabcl 6545 ixpm 6877 en1m 6957 dom1o 6977 dom1oi 6978 enm 6979 ssfilem 7037 fin0 7047 fin0or 7048 diffitest 7049 diffisn 7055 infm 7066 inffiexmid 7068 ctssdc 7280 omct 7284 ctssexmid 7317 exmidfodomrlemr 7380 exmidfodomrlemrALT 7381 acnrcl 7383 exmidaclem 7390 iftrueb01 7408 pw1if 7410 caucvgsrlemasr 7977 suplocsrlempr 7994 gtso 8225 sup3exmid 9104 indstr 9788 negm 9810 fzm 10234 fzom 10361 rexfiuz 11500 r19.2uz 11504 resqrexlemgt0 11531 climuni 11804 bezoutlembi 12526 nninfct 12562 lcmgcdlem 12599 pcprecl 12812 pc2dvds 12853 4sqlem13m 12926 nninfdclemcl 13019 dfgrp3m 13632 issubg2m 13726 issubgrpd2 13727 issubg3 13729 issubg4m 13730 grpissubg 13731 subgintm 13735 nmzsubg 13747 ghmrn 13794 ghmpreima 13803 dvdsr02 14069 01eq0ring 14153 subrgugrp 14204 lmodfopnelem1 14288 rmodislmodlem 14314 rmodislmod 14315 lss1 14326 lsssubg 14341 islss3 14343 islss4 14346 lss1d 14347 lssintclm 14348 dflidl2rng 14445 lidlsubg 14450 cnsubglem 14543 tgioo 15228 elply2 15409 pw1nct 16369 nninfall 16375 nnnninfen 16387 |
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