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Theorem rabssdv 4028
Description: Subclass of a restricted class abstraction (deduction form). (Contributed by NM, 2-Feb-2015.)
Hypothesis
Ref Expression
rabssdv.1 ((𝜑𝑥𝐴𝜓) → 𝑥𝐵)
Assertion
Ref Expression
rabssdv (𝜑 → {𝑥𝐴𝜓} ⊆ 𝐵)
Distinct variable groups:   𝑥,𝐵   𝜑,𝑥
Allowed substitution hints:   𝜓(𝑥)   𝐴(𝑥)

Proof of Theorem rabssdv
StepHypRef Expression
1 rabssdv.1 . . . 4 ((𝜑𝑥𝐴𝜓) → 𝑥𝐵)
213exp 1120 . . 3 (𝜑 → (𝑥𝐴 → (𝜓𝑥𝐵)))
32ralrimiv 3129 . 2 (𝜑 → ∀𝑥𝐴 (𝜓𝑥𝐵))
4 rabss 4024 . 2 ({𝑥𝐴𝜓} ⊆ 𝐵 ↔ ∀𝑥𝐴 (𝜓𝑥𝐵))
53, 4sylibr 234 1 (𝜑 → {𝑥𝐴𝜓} ⊆ 𝐵)
Colors of variables: wff setvar class
Syntax hints:  wi 4  w3a 1087  wcel 2114  wral 3052  {crab 3401  wss 3903
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2709
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-ex 1782  df-nf 1786  df-sb 2069  df-clab 2716  df-cleq 2729  df-clel 2812  df-nfc 2886  df-ral 3053  df-rab 3402  df-ss 3920
This theorem is referenced by:  suppss2  8154  oemapvali  9607  cantnflem1  9612  harval2  9923  zsupss  12864  ramub1lem1  16968  symggen  19416  efgsfo  19685  ablfacrp  20014  ablfac1eu  20021  pgpfac1lem5  20027  ablfaclem3  20035  nrmr0reg  23710  ptcmplem3  24015  abelthlem2  26415  lgamgulmlem1  27012  ltonold  28274  onsfi  28369  rspectopn  34051  fineqvnttrclselem1  35305  neibastop2lem  36582  topmeet  36586  weiunse  36690  cntotbnd  38076  mapdrvallem2  42050  aks6d1c6lem3  42571  onintunirab  43613  nadd2rabex  43772  k0004ss1  44536  liminfvalxr  46170
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