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Theorem rabssdv 3999
Description: Subclass of a restricted class abstraction (deduction form). (Contributed by NM, 2-Feb-2015.)
Hypothesis
Ref Expression
rabssdv.1 ((𝜑 ∧ 𝑥 ∈ 𝐴 ∧ 𝜓) → 𝑥 ∈ 𝐵)
Assertion
Ref Expression
rabssdv (𝜑 → {𝑥 ∈ 𝐴 ∣ 𝜓} ⊆ 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 ((𝜑 ∧ 𝑥 ∈ 𝐴 ∧ 𝜓) → 𝑥 ∈ 𝐵)
213exp 1137 . . 3 (𝜑 → (𝑥 ∈ 𝐴 → (𝜓 → 𝑥 ∈ 𝐵)))
32ralrimiv 3153 . 2 (𝜑 → ∀𝑥 ∈ 𝐴 (𝜓 → 𝑥 ∈ 𝐵))
4 rabss 3995 . 2 ({𝑥 ∈ 𝐴 ∣ 𝜓} ⊆ 𝐵 ↔ ∀𝑥 ∈ 𝐴 (𝜓 → 𝑥 ∈ 𝐵))
53, 4sylibr 237 1 (𝜑 → {𝑥 ∈ 𝐴 ∣ 𝜓} ⊆ 𝐵)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   ∧ w3a 1103   ∈ wcel 2144  ∀wral 3076  {crab 3412   ⊆ wss 3895
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1827  ax-4 1841  ax-5 1942  ax-6 1999  ax-7 2040  ax-8 2146  ax-9 2154  ax-10 2177  ax-11 2193  ax-12 2212  ax-ext 2732
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1572  df-ex 1812  df-nf 1816  df-sb 2099  df-clab 2739  df-cleq 2752  df-clel 2835  df-nfc 2909  df-ral 3077  df-rab 3413  df-ss 3896
This theorem is used by:  suppss2  8217  oemapvali  9685  cantnflem1  9690  harval2  10078  zsupss  13064  ramub1lem1  17204  symggen  19684  efgsfo  19953  ablfacrp  20282  ablfac1eu  20289  pgpfac1lem5  20295  ablfaclem3  20303  nrmr0reg  24068  ptcmplem3  24373  abelthlem2  26759  lgamgulmlem1  27356  ltonold  28647  onsfi  28742  rspectopn  34499  fineqvnttrclselem1  35789  neibastop2lem  37148  topmeet  37152  weiunse  37256  cntotbnd  38731  mapdrvallem2  42703  aks6d1c6lem3  43223  onintunirab  44229  nadd2rabex  44388  k0004ss1  45151  liminfvalxr  46793
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