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Theorem ralrab 3652
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 3645 . . . 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 3104 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 2145  wral 3076  {crab 3412
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 2147  ax-9 2155  ax-ext 2732
This proof depends on definitions:  df-bi 210  df-an 402  df-tru 1573  df-ex 1813  df-sb 2100  df-clab 2739  df-cleq 2752  df-clel 2835  df-ral 3077  df-rab 3413  df-v 3452
This theorem is used by:  frminex  5634  wereu2  5652  frpomin  6338  weniso  7358  zmin  12994  prmreclem1  17009  lublecllem  18447  mgmhmeql  18819  mhmeql  18936  ghmeql  19367  pgpfac1lem5  20209  lmhmeql  21240  rspprop  21434  islindf4  22052  1stcfb  23671  fbssfi  24064  filssufilg  24138  txflf  24233  ptcmplem3  24281  symgtgp  24333  tgpconncompeqg  24339  cnllycmp  25185  ovolgelb  25709  dyadmax  25827  lhop1  26242  radcnvlt1  26655  noextenddif  27905  conway  28045  madebdaylemlrcut  28165  oncutlt  28530  oniso  28537  bdayons  28542  bdayn0p1  28635  poimirlem4  38374  poimirlem32  38402  ismblfin  38411  igenval2  38817  glbconN  40251  nadd2rabtr  44226  isubgruhgr  48785  intubeu  49911  unilbeu  49912
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