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Theorem ralrab 3659
Description: Universal quantification over a restricted class abstraction. (Contributed by Jeff Madsen, 10-Jun-2010.)
Hypothesis
Ref Expression
ralab.1 (𝑦 = 𝑥 → (𝜑𝜓))
Assertion
Ref Expression
ralrab (∀𝑥 ∈ {𝑦𝐴𝜑}𝜒 ↔ ∀𝑥𝐴 (𝜓𝜒))
Distinct variable groups:   𝑥,𝑦   𝑦,𝐴   𝜓,𝑦
Allowed substitution hints:   𝜑(𝑥, 𝑦)   𝜓(𝑥)   𝜒(𝑥, 𝑦)   𝐴(𝑥)

Proof of Theorem ralrab
StepHypRef Expression
1 ralab.1 . . . . 5 (𝑦 = 𝑥 → (𝜑𝜓))
21elrab 3652 . . . 4 (𝑥 ∈ {𝑦𝐴𝜑} ↔ (𝑥𝐴𝜓))
32imbi1i 352 . . 3 ((𝑥 ∈ {𝑦𝐴𝜑} → 𝜒) ↔ ((𝑥𝐴𝜓) → 𝜒))
4 impexp 456 . . 3 (((𝑥𝐴𝜓) → 𝜒) ↔ (𝑥𝐴 → (𝜓𝜒)))
53, 4bitri 278 . 2 ((𝑥 ∈ {𝑦𝐴𝜑} → 𝜒) ↔ (𝑥𝐴 → (𝜓𝜒)))
65ralbii2 3109 1 (∀𝑥 ∈ {𝑦𝐴𝜑}𝜒 ↔ ∀𝑥𝐴 (𝜓𝜒))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  wb 209  wa 401  wcel 2146  wral 3081  {crab 3418
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 1943  ax-6 2000  ax-7 2041  ax-8 2148  ax-9 2156  ax-ext 2737
This proof depends on definitions:  df-bi 210  df-an 402  df-tru 1573  df-ex 1813  df-sb 2100  df-clab 2744  df-cleq 2757  df-clel 2840  df-ral 3082  df-rab 3419  df-v 3459
This theorem is used by:  frminex  5642  wereu2  5660  frpomin  6345  weniso  7363  zmin  12984  prmreclem1  16998  lublecllem  18436  mgmhmeql  18806  mhmeql  18922  ghmeql  19353  pgpfac1lem5  20195  lmhmeql  21226  rspprop  21420  islindf4  22038  1stcfb  23652  fbssfi  24045  filssufilg  24119  txflf  24214  ptcmplem3  24262  symgtgp  24314  tgpconncompeqg  24320  cnllycmp  25166  ovolgelb  25690  dyadmax  25808  lhop1  26224  radcnvlt1  26632  noextenddif  27883  conway  28023  madebdaylemlrcut  28143  oncutlt  28508  oniso  28515  bdayons  28520  bdayn0p1  28613  poimirlem4  38332  poimirlem32  38360  ismblfin  38369  igenval2  38775  glbconN  40209  nadd2rabtr  44169  isubgruhgr  48691  intubeu  49819  unilbeu  49820
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