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| Description: Membership relationships follow from a subclass relationship. |
| Ref | Expression |
|---|---|
| ssel2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssel 2067 |
. 2
| |
| 2 | 1 | imp 350 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: tz7.7 2980 onnmin 3022 onmindif 3067 onmindif2 3068 ordunisssuc 3090 limsssuc 3128 ssimaex 3775 1st2nd 4115 fundmen 4435 isfinite2 4559 isfinite2OLD 4560 suplem2pr 5181 axsup 5526 lbinfm 6057 suprleub 6068 dfinfmr 6076 infmrcl 6078 xrsupsslem 6085 xrinfmsslem 6086 xrub 6089 supxr2 6091 supxrre 6092 supxrun 6094 supxrunb1 6098 supxrbnd 6100 supxrbnd1 6104 supxrbnd2 6105 supxrub 6107 supxrleub 6108 uzwo4OLD 6219 shftf 6359 uzwo 6463 uzwoOLD 6464 sumeqfv 7004 infxpidmlem5 7564 infxpidmlem7 7566 infxpidmlem8 7567 tgclt 7630 fctopOLD 7654 cctop 7656 neips 7731 isopn4 7866 opni3 7870 opnuni 7872 lpbl 7884 metcnplem 7890 metelcls 7969 ubthlem11 8542 ocsh 9158 ocorth 9166 spansncv 9599 pjss1co 10093 sumdmdi 10345 efilcp 10564 efilcp2 10569 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 964 ax-gen 965 ax-8 966 ax-10 968 ax-12 970 ax-17 973 ax-4 975 ax-5o 977 ax-6o 980 ax-9o 1125 ax-10o 1142 ax-16 1212 ax-11o 1220 ax-ext 1462 |
| This theorem depends on definitions: df-bi 147 df-an 225 df-ex 983 df-sb 1174 df-clab 1467 df-cleq 1472 df-clel 1475 df-in 2055 df-ss 2057 |