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Theorem rexlimdvaa 2669
Description: Inference from Theorem 19.23 of [Margaris] p. 90 (restricted quantifier version). (Contributed by Mario Carneiro, 15-Jun-2016.)
Hypothesis
Ref Expression
rexlimdvaa.1 ((𝜑 ∧ (𝑥𝐴𝜓)) → 𝜒)
Assertion
Ref Expression
rexlimdvaa (𝜑 → (∃𝑥𝐴 𝜓𝜒))
Distinct variable groups:   𝜑,𝑥   𝜒,𝑥
Allowed substitution hints:   𝜓(𝑥)   𝐴(𝑥)

Proof of Theorem rexlimdvaa
StepHypRef Expression
1 rexlimdvaa.1 . . 3 ((𝜑 ∧ (𝑥𝐴𝜓)) → 𝜒)
21expr 375 . 2 ((𝜑𝑥𝐴) → (𝜓𝜒))
32rexlimdva 2668 1 (𝜑 → (∃𝑥𝐴 𝜓𝜒))
Colors of variables:    wff set class
This proof depends on syntax axioms:  wi 4  wa 104  wcel 2209  wrex 2529
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-5 1500  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-4 1563  ax-17 1579  ax-ial 1587  ax-i5r 1588
This proof depends on definitions:  df-bi 117  df-nf 1514  df-ral 2533  df-rex 2534
This theorem is used by:  rexlimddv  2673  nnsucuniel  6768  omp1eomlem  7434  ctmlemr  7448  mulgt0sr  8145  axpre-suploclemres  8268  cnegex  8504  receuap  9000  recapb  9002  rexanuz  11756  climcaucn  12119  fsumiun  12246  dvdsval2  12559  nninfctlemfo  12819  prmind2  12900  pcprmpw2  13114  pockthg  13138  dvdsrvald  14402  dvdsrd  14403  dvdsrex  14407  unitgrp  14425  isnzr2  14493  znunit  14996  tgcl  15167  neiint  15248  restopnb  15284  iscnp4  15321  blssexps  15532  blssex  15533  lgsne0  16169  lgsquadlem1  16208
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