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| Mirrors > Home > ILE Home > Th. List > velpw | Unicode version | ||
| Description: Setvar variable membership in a power class (common case). See elpw 3677. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| velpw |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 2818 |
. 2
| |
| 2 | 1 | elpw 3677 |
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-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2216 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-v 2817 df-in 3219 df-ss 3226 df-pw 3673 |
| This theorem is referenced by: sspw 3684 ordpwsucss 4691 fabexg 5556 abexssex 6320 qsss 6830 mapval2 6914 pmsspw 6919 uniixp 6958 exmidpw 7170 exmidpweq 7171 pw1fin 7172 pw1dc0el 7173 fival 7259 npsspw 7788 ballotfilem2 13149 restsspw 13479 subsubrng2 14377 subsubrg2 14408 lssintclm 14549 istopon 14895 isbasis2g 14927 tgval2 14933 unitg 14944 distop 14967 cldss2 14988 ntreq0 15014 discld 15018 neisspw 15030 restdis 15066 cnntr 15107 exmidnotnotr 16796 |
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