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Theorem ralrab 3662
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 3656 . . . 4 (𝑥 ∈ {𝑦𝐴𝜑} ↔ (𝑥𝐴𝜓))
32imbi1i 349 . . 3 ((𝑥 ∈ {𝑦𝐴𝜑} → 𝜒) ↔ ((𝑥𝐴𝜓) → 𝜒))
4 impexp 450 . . 3 (((𝑥𝐴𝜓) → 𝜒) ↔ (𝑥𝐴 → (𝜓𝜒)))
53, 4bitri 275 . 2 ((𝑥 ∈ {𝑦𝐴𝜑} → 𝜒) ↔ (𝑥𝐴 → (𝜓𝜒)))
65ralbii2 3071 1 (∀𝑥 ∈ {𝑦𝐴𝜑}𝜒 ↔ ∀𝑥𝐴 (𝜓𝜒))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 206  wa 395  wcel 2109  wral 3044  {crab 3402
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-ext 2701
This theorem depends on definitions:  df-bi 207  df-an 396  df-tru 1543  df-ex 1780  df-sb 2066  df-clab 2708  df-cleq 2721  df-clel 2803  df-ral 3045  df-rab 3403  df-v 3446
This theorem is referenced by:  frminex  5610  wereu2  5628  frpomin  6301  weniso  7311  zmin  12879  prmreclem1  16863  lublecllem  18299  mgmhmeql  18625  mhmeql  18735  ghmeql  19153  pgpfac1lem5  19995  lmhmeql  20994  islindf4  21780  1stcfb  23365  fbssfi  23757  filssufilg  23831  txflf  23926  ptcmplem3  23974  symgtgp  24026  tgpconncompeqg  24032  cnllycmp  24888  ovolgelb  25414  dyadmax  25532  lhop1  25952  radcnvlt1  26360  noextenddif  27613  conway  27745  madebdaylemlrcut  27848  onscutlt  28205  onsiso  28209  bdayon  28213  bdayn0p1  28298  poimirlem4  37611  poimirlem32  37639  ismblfin  37648  igenval2  38053  glbconN  39363  glbconNOLD  39364  nadd2rabtr  43366  isubgruhgr  47861  intubeu  48965  unilbeu  48966
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