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Theorem reximdva 2726
Description: Deduction quantifying both antecedent and consequent, based on Theorem 19.22 of [Margaris] p. 90. (Contributed by NM, 22-May-1999.)
Hypothesis
Ref Expression
reximdva.1
Assertion
Ref Expression
reximdva
Distinct variable group:   ,
Allowed substitution hints:   ()   ()   ()

Proof of Theorem reximdva
StepHypRef Expression
1 reximdva.1 . . 3
21ex 423 . 2
32reximdvai 2724 1
Colors of variables: wff setvar class
Syntax hints:   wi 4   wa 358   wcel 1710  wrex 2615
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1546  ax-5 1557  ax-17 1616  ax-9 1654  ax-8 1675  ax-11 1746
This theorem depends on definitions:  df-bi 177  df-an 360  df-ex 1542  df-nf 1545  df-ral 2619  df-rex 2620
This theorem is referenced by:  sfindbl  4530  dffo4  5423  weds  5938  nenpw1pwlem2  6085  nchoicelem19  6307
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