| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > velpw | GIF version | ||
| Description: Setvar variable membership in a power class (common case). See elpw 3680. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| velpw | ⊢ (𝑥 ∈ 𝒫 𝐴 ↔ 𝑥 ⊆ 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 2818 | . 2 ⊢ 𝑥 ∈ V | |
| 2 | 1 | elpw 3680 | 1 ⊢ (𝑥 ∈ 𝒫 𝐴 ↔ 𝑥 ⊆ 𝐴) |
| Colors of variables: wff set class |
| Syntax hints: ↔ wb 105 ∈ wcel 2205 ⊆ wss 3214 𝒫 cpw 3674 |
| 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 3220 df-ss 3227 df-pw 3676 |
| This theorem is referenced by: sspw 3687 ordpwsucss 4694 fabexg 5559 abexssex 6327 qsss 6841 mapval2 6925 pmsspw 6930 uniixp 6969 exmidpw 7181 exmidpweq 7182 pw1fin 7183 pw1dc0el 7184 fival 7270 npsspw 7802 ballotfilem2 13172 restsspw 13546 subsubrng2 14461 subsubrg2 14492 lssintclm 14658 istopon 15004 isbasis2g 15036 tgval2 15042 unitg 15053 distop 15076 cldss2 15097 ntreq0 15123 discld 15127 neisspw 15139 restdis 15175 cnntr 15216 exmidnotnotr 16905 |
| Copyright terms: Public domain | W3C validator |