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Theorem ralrab 3657
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 3650 . . . 4 (𝑥 ∈ {𝑦𝐴𝜑} ↔ (𝑥𝐴𝜓))
32imbi1i 351 . . 3 ((𝑥 ∈ {𝑦𝐴𝜑} → 𝜒) ↔ ((𝑥𝐴𝜓) → 𝜒))
4 impexp 454 . . 3 (((𝑥𝐴𝜓) → 𝜒) ↔ (𝑥𝐴 → (𝜓𝜒)))
53, 4bitri 277 . 2 ((𝑥 ∈ {𝑦𝐴𝜑} → 𝜒) ↔ (𝑥𝐴 → (𝜓𝜒)))
65ralbii2 3104 1 (∀𝑥 ∈ {𝑦𝐴𝜑}𝜒 ↔ ∀𝑥𝐴 (𝜓𝜒))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 208  wa 399  wcel 2142  wral 3076  {crab 3414
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1815  ax-4 1829  ax-5 1930  ax-6 1987  ax-7 2028  ax-8 2144  ax-9 2152  ax-ext 2734
This theorem depends on definitions:  df-bi 209  df-an 400  df-tru 1563  df-ex 1800  df-sb 2091  df-clab 2741  df-cleq 2754  df-clel 2837  df-ral 3077  df-rab 3415  df-v 3456
This theorem is referenced by:  frminex  5626  wereu2  5644  frpomin  6327  weniso  7338  zmin  12945  prmreclem1  16952  lublecllem  18390  mgmhmeql  18750  mhmeql  18860  ghmeql  19279  pgpfac1lem5  20121  lmhmeql  21122  islindf4  21890  1stcfb  23505  fbssfi  23897  filssufilg  23971  txflf  24066  ptcmplem3  24114  symgtgp  24166  tgpconncompeqg  24172  cnllycmp  25018  ovolgelb  25542  dyadmax  25660  lhop1  26076  radcnvlt1  26481  noextenddif  27732  conway  27872  madebdaylemlrcut  27992  oncutlt  28357  oniso  28364  bdayons  28369  bdayn0p1  28462  poimirlem4  38123  poimirlem32  38151  ismblfin  38160  igenval2  38565  glbconN  40001  nadd2rabtr  43961  isubgruhgr  48490  intubeu  49605  unilbeu  49606
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