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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 3694. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| velpw |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 2824 |
. 2
| |
| 2 | 1 | elpw 3694 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on 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 proof 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 3690 |
| This theorem is used by: sspw 3702 ordpwsucss 4714 fabexg 5579 abexssex 6354 qsss 6868 fsetsspwxp 6948 mapval2 6959 pmsspw 6964 uniixp 7003 exmidpw 7215 exmidpweq 7216 pw1fin 7217 pw1dc0el 7218 fival 7304 npsspw 7839 ballotfilem2 13280 restsspw 13656 subsubrng2 14607 subsubrg2 14638 lssintclm 14805 istopon 15205 isbasis2g 15237 tgval2 15243 unitg 15254 distop 15277 cldss2 15298 ntreq0 15324 discld 15328 neisspw 15340 restdis 15376 cnntr 15417 exmidnotnotr 17202 |
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