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Mirrors > Home > ILE Home > Th. List > elpw2g | Unicode version |
Description: Membership in a power class. Theorem 86 of [Suppes] p. 47. (Contributed by NM, 7-Aug-2000.) |
Ref | Expression |
---|---|
elpw2g |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elpwi 3524 | . 2 | |
2 | ssexg 4075 | . . . 4 | |
3 | elpwg 3523 | . . . . 5 | |
4 | 3 | biimparc 297 | . . . 4 |
5 | 2, 4 | syldan 280 | . . 3 |
6 | 5 | expcom 115 | . 2 |
7 | 1, 6 | impbid2 142 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wb 104 wcel 1481 cvv 2689 wss 3076 cpw 3515 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 ax-sep 4054 |
This theorem depends on definitions: df-bi 116 df-tru 1335 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-v 2691 df-in 3082 df-ss 3089 df-pw 3517 |
This theorem is referenced by: elpw2 4090 pwnss 4091 elfir 6869 istopg 12205 uniopn 12207 iscld 12311 ntrval 12318 clsval 12319 discld 12344 neival 12351 isnei 12352 restdis 12392 cnpfval 12403 cndis 12449 blfvalps 12593 blfps 12617 blf 12618 reldvg 12856 |
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