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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 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elpwi 3586 |
. 2
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2 | ssexg 4144 |
. . . 4
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3 | elpwg 3585 |
. . . . 5
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4 | 3 | biimparc 299 |
. . . 4
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5 | 2, 4 | syldan 282 |
. . 3
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6 | 5 | expcom 116 |
. 2
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7 | 1, 6 | impbid2 143 |
1
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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 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-ext 2159 ax-sep 4123 |
This theorem depends on definitions: df-bi 117 df-tru 1356 df-nf 1461 df-sb 1763 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-v 2741 df-in 3137 df-ss 3144 df-pw 3579 |
This theorem is referenced by: elpw2 4159 pwnss 4161 ifelpwung 4483 elfir 6975 issubm 12869 issubg 13039 issubrg 13348 islssm 13451 lspval 13483 lspcl 13484 sraval 13529 istopg 13639 uniopn 13641 iscld 13743 ntrval 13750 clsval 13751 discld 13776 neival 13783 isnei 13784 restdis 13824 cnpfval 13835 cndis 13881 blfvalps 14025 blfps 14049 blf 14050 reldvg 14288 |
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