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Theorem elpwid 3700
Description: An element of a power class is a subclass. Deduction form of elpwi 3698. (Contributed by David Moews, 1-May-2017.)
Hypothesis
Ref Expression
elpwid.1 (𝜑𝐴 ∈ 𝒫 𝐵)
Assertion
Ref Expression
elpwid (𝜑𝐴𝐵)

Proof of Theorem elpwid
StepHypRef Expression
1 elpwid.1 . 2 (𝜑𝐴 ∈ 𝒫 𝐵)
2 elpwi 3698 . 2 (𝐴 ∈ 𝒫 𝐵𝐴𝐵)
31, 2syl 14 1 (𝜑𝐴𝐵)
Colors of variables:    wff set class
This proof depends on syntax axioms:  wi 4  wcel 2209  wss 3220  𝒫 cpw 3688
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-ext 2220
This proof depends on definitions:  df-bi 117  df-tru 1405  df-nf 1514  df-sb 1816  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-v 2823  df-in 3226  df-ss 3233  df-pw 3690
This theorem is used by:  fopwdom  7136  ssenen  7152  fival  7304  fiuni  7312  3nelsucpw1  7593  elnp1st2nd  7843  ixxssxr  10304  elfzoelz  10556  ballotfilem2  13230  ballotfilemfmpn  13236  restid2  13604  epttop  15193  neiss2  15245  blssm  15524  blin2  15535  cncfrss  15678  cncfrss2  15679  dvidsslem  15796  dvconstss  15801  plybss  15836  uhgrss  16328  upgrss  16352  upgr1een  16377  usgrss  16430  eupth2lemsfi  16731  pw1ndom3lem  17031  pwle2  17040
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