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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 3691. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| velpw |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 2824 |
. 2
| |
| 2 | 1 | elpw 3691 |
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 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This theorem depends on definitions: df-bi 117 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-v 2823 df-in 3226 df-ss 3233 df-pw 3687 |
| This theorem is referenced by: sspw 3698 ordpwsucss 4709 fabexg 5574 abexssex 6344 qsss 6858 fsetsspwxp 6938 mapval2 6949 pmsspw 6954 uniixp 6993 exmidpw 7205 exmidpweq 7206 pw1fin 7207 pw1dc0el 7208 fival 7294 npsspw 7828 ballotfilem2 13206 restsspw 13580 subsubrng2 14496 subsubrg2 14527 lssintclm 14693 istopon 15037 isbasis2g 15069 tgval2 15075 unitg 15086 distop 15109 cldss2 15130 ntreq0 15156 discld 15160 neisspw 15172 restdis 15208 cnntr 15249 exmidnotnotr 16949 |
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