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Theorem ralrab 3635
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 3629 . . . 4 (𝑥 ∈ {𝑦𝐴𝜑} ↔ (𝑥𝐴𝜓))
32imbi1i 350 . . 3 ((𝑥 ∈ {𝑦𝐴𝜑} → 𝜒) ↔ ((𝑥𝐴𝜓) → 𝜒))
4 impexp 451 . . 3 (((𝑥𝐴𝜓) → 𝜒) ↔ (𝑥𝐴 → (𝜓𝜒)))
53, 4bitri 276 . 2 ((𝑥 ∈ {𝑦𝐴𝜑} → 𝜒) ↔ (𝑥𝐴 → (𝜓𝜒)))
65ralbii2 3081 1 (∀𝑥 ∈ {𝑦𝐴𝜑}𝜒 ↔ ∀𝑥𝐴 (𝜓𝜒))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 207  wa 396  wcel 2119  wral 3053  {crab 3391
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1802  ax-4 1816  ax-5 1917  ax-6 1974  ax-7 2015  ax-8 2121  ax-9 2129  ax-ext 2711
This theorem depends on definitions:  df-bi 208  df-an 397  df-tru 1550  df-ex 1787  df-sb 2074  df-clab 2718  df-cleq 2731  df-clel 2814  df-ral 3054  df-rab 3392  df-v 3433
This theorem is referenced by:  frminex  5597  wereu2  5615  frpomin  6291  weniso  7298  zmin  12885  prmreclem1  16878  lublecllem  18315  mgmhmeql  18675  mhmeql  18785  ghmeql  19205  pgpfac1lem5  20047  lmhmeql  21045  islindf4  21813  1stcfb  23428  fbssfi  23820  filssufilg  23894  txflf  23989  ptcmplem3  24037  symgtgp  24089  tgpconncompeqg  24095  cnllycmp  24941  ovolgelb  25465  dyadmax  25583  lhop1  25999  radcnvlt1  26401  noextenddif  27650  conway  27789  madebdaylemlrcut  27909  oncutlt  28274  oniso  28281  bdayons  28286  bdayn0p1  28379  poimirlem4  37991  poimirlem32  38019  ismblfin  38028  igenval2  38433  glbconN  39869  nadd2rabtr  43829  isubgruhgr  48359  intubeu  49474  unilbeu  49475
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