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| Description: Membership relationships follow from a subclass relationship. |
| Ref | Expression |
|---|---|
| ssel2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssel 2059 |
. 2
| |
| 2 | 1 | imp 350 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: tz7.7 2968 onnmin 3010 onmindif 3055 onmindif2 3056 ordunisssuc 3078 limsssuc 3116 ssimaex 3759 1st2nd 4098 fundmen 4415 isfinite2 4529 suplem2pr 5142 axsup 5487 lbinfm 6003 suprleub 6014 dfinfmr 6022 infmrcl 6024 xrsupsslem 6031 xrinfmsslem 6032 xrub 6035 supxr2 6037 supxrre 6038 supxrun 6040 supxrunb1 6044 supxrbnd 6046 supxrbnd1 6050 supxrbnd2 6051 supxrub 6053 supxrleub 6054 uzwo4OLD 6166 shftf 6296 uzwo 6395 uzwoOLD 6396 sumeqfv 6943 infxpidmlem5 7507 infxpidmlem7 7509 infxpidmlem8 7510 tgclt 7574 fctop 7600 cctop 7602 neips 7677 isopn4 7814 opni3 7818 opnuni 7820 lpbl 7832 metcnplem 7838 metelcls 7916 ubthlem11 8483 ocsh 9095 ocorth 9103 spansncv 9537 pjss1co 10029 sumdmdi 10278 efilcp 10481 efilcp2 10486 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 960 ax-gen 961 ax-8 962 ax-10 964 ax-12 966 ax-17 969 ax-4 971 ax-5o 973 ax-6o 976 ax-9o 1121 ax-10o 1138 ax-16 1208 ax-11o 1216 ax-ext 1457 |
| This theorem depends on definitions: df-bi 147 df-an 225 df-ex 979 df-sb 1170 df-clab 1462 df-cleq 1467 df-clel 1470 df-in 2047 df-ss 2049 |