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Theorem rabssdv 4002
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 3157 . 2 (𝜑 → ∀𝑥 ∈ 𝐴 (𝜓 → 𝑥 ∈ 𝐵))
4 rabss 3998 . 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 2147  ∀wral 3080  {crab 3416   ⊆ wss 3900
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1945  ax-6 2002  ax-7 2043  ax-8 2149  ax-9 2157  ax-10 2180  ax-11 2197  ax-12 2216  ax-ext 2735
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-ex 1813  df-nf 1817  df-sb 2102  df-clab 2742  df-cleq 2755  df-clel 2839  df-nfc 2913  df-ral 3081  df-rab 3417  df-ss 3901
This theorem is used by:  suppss2  8242  oemapvali  9709  cantnflem1  9714  harval2  10102  zsupss  13088  ramub1lem1  17230  symggen  19711  efgsfo  19980  ablfacrp  20309  ablfac1eu  20316  pgpfac1lem5  20322  ablfaclem3  20330  nrmr0reg  24095  ptcmplem3  24400  abelthlem2  26786  lgamgulmlem1  27383  ltonold  28674  onsfi  28769  rspectopn  34566  fineqvnttrclselem1  35888  neibastop2lem  37325  topmeet  37329  weiunse  37433  cntotbnd  38921  mapdrvallem2  42893  aks6d1c6lem3  43413  onintunirab  44419  nadd2rabex  44578  k0004ss1  45341  liminfvalxr  46996
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