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Theorem reximddv 2538
 Description: Deduction from Theorem 19.22 of [Margaris] p. 90. (Contributed by Thierry Arnoux, 7-Dec-2016.)
Hypotheses
Ref Expression
reximddva.1
reximddva.2
Assertion
Ref Expression
reximddv
Distinct variable group:   ,
Allowed substitution hints:   ()   ()   ()

Proof of Theorem reximddv
StepHypRef Expression
1 reximddva.2 . 2
2 reximddva.1 . . . 4
32expr 373 . . 3
43reximdva 2537 . 2
51, 4mpd 13 1
 Colors of variables: wff set class Syntax hints:   wi 4   wa 103   wcel 1481  wrex 2418 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-5 1424  ax-gen 1426  ax-ie1 1470  ax-ie2 1471  ax-4 1488  ax-17 1507  ax-ial 1515 This theorem depends on definitions:  df-bi 116  df-nf 1438  df-ral 2422  df-rex 2423 This theorem is referenced by:  reximddv2  2540
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