Theorem elpw2 4268

Description: Membership in a power class. Theorem 86 of [Suppes] p. 47. (Contributed by NM, 11-Oct-2007.)

Hypothesis

Ref	Expression
elpw2.1	⊢ 𝐵 ∈ V

Assertion

Ref	Expression
elpw2	⊢ (𝐴 ∈ 𝒫 𝐵 ↔ 𝐴 ⊆ 𝐵)

Proof of Theorem elpw2

Step	Hyp	Ref	Expression
1		elpw2.1	. 2 ⊢ 𝐵 ∈ V
2		elpw2g 4267	. 2 ⊢ (𝐵 ∈ V → (𝐴 ∈ 𝒫 𝐵 ↔ 𝐴 ⊆ 𝐵))
3	1, 2	ax-mp 5	1 ⊢ (𝐴 ∈ 𝒫 𝐵 ↔ 𝐴 ⊆ 𝐵)

Syntax hints:   ↔ wb 105   ∈ wcel 2203  Vcvv 2812   ⊆ wss 3210  𝒫 cpw 3668

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 2214  ax-sep 4227

This theorem depends on definitions:  df-bi 117  df-tru 1401  df-nf 1510  df-sb 1812  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-v 2814  df-in 3216  df-ss 3223  df-pw 3670

This theorem is referenced by:  elpwi2  4269  axpweq  4283  genpelxp  7822  ltexprlempr  7919  recexprlempr  7943  cauappcvgprlemcl  7964  cauappcvgprlemladd  7969  caucvgprlemcl  7987  caucvgprprlemcl  8015  uzf  9852  ixxf  10227  fzf  10342  cncfval  15424  reldvg  15531  dvfvalap  15533  plyval  15584