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Theorem ralrimivv 2625
Description: Inference from Theorem 19.21 of [Margaris] p. 90. (Restricted quantifier version with double quantification.) (Contributed by NM, 24-Jul-2004.)
Hypothesis
Ref Expression
ralrimivv.1 (𝜑 → ((𝑥𝐴𝑦𝐵) → 𝜓))
Assertion
Ref Expression
ralrimivv (𝜑 → ∀𝑥𝐴𝑦𝐵 𝜓)
Distinct variable groups:   𝑥,𝑦,𝜑   𝑦,𝐴
Allowed substitution hints:   𝜓(𝑥,𝑦)   𝐴(𝑥)   𝐵(𝑥,𝑦)

Proof of Theorem ralrimivv
StepHypRef Expression
1 ralrimivv.1 . . . 4 (𝜑 → ((𝑥𝐴𝑦𝐵) → 𝜓))
21expd 258 . . 3 (𝜑 → (𝑥𝐴 → (𝑦𝐵𝜓)))
32ralrimdv 2623 . 2 (𝜑 → (𝑥𝐴 → ∀𝑦𝐵 𝜓))
43ralrimiv 2616 1 (𝜑 → ∀𝑥𝐴𝑦𝐵 𝜓)
Colors of variables: wff set class
Syntax hints:  wi 4  wa 104  wcel 2205  wral 2522
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-5 1496  ax-gen 1498  ax-4 1559  ax-17 1575
This theorem depends on definitions:  df-bi 117  df-nf 1510  df-ral 2527
This theorem is referenced by:  ralrimivva  2626  ralrimdvv  2628  reuind  3025  ssrel2  4847  f1o2ndf1  6439  smoiso  6548  nndifsnid  6755  receuap  8965  lbreu  9241  0subm  13745  insubm  13746  iscmnd  14057  quscrng  14813  tgcl  15061  topbas  15064  epttop  15087  restbasg  15165  txbas  15255  txbasval  15264  blfps  15406  blf  15407  blbas  15430
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