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Mirrors > Home > ILE Home > Th. List > elpw2 | GIF version |
Description: Membership in a power class. Theorem 86 of [Suppes] p. 47. (Contributed by NM, 11-Oct-2007.) |
Ref | Expression |
---|---|
elpw2.1 | ⊢ 𝐵 ∈ V |
Ref | Expression |
---|---|
elpw2 | ⊢ (𝐴 ∈ 𝒫 𝐵 ↔ 𝐴 ⊆ 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elpw2.1 | . 2 ⊢ 𝐵 ∈ V | |
2 | elpw2g 4089 | . 2 ⊢ (𝐵 ∈ V → (𝐴 ∈ 𝒫 𝐵 ↔ 𝐴 ⊆ 𝐵)) | |
3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝐴 ∈ 𝒫 𝐵 ↔ 𝐴 ⊆ 𝐵) |
Colors of variables: wff set class |
Syntax hints: ↔ wb 104 ∈ wcel 1481 Vcvv 2689 ⊆ wss 3076 𝒫 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: axpweq 4103 genpelxp 7343 ltexprlempr 7440 recexprlempr 7464 cauappcvgprlemcl 7485 cauappcvgprlemladd 7490 caucvgprlemcl 7508 caucvgprprlemcl 7536 uzf 9353 ixxf 9711 fzf 9825 cncfval 12767 reldvg 12856 dvfvalap 12858 |
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