ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  rexlimdvaa GIF version

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 ∧ (𝑥 ∈ 𝐴 ∧ 𝜓)) → 𝜒)
Assertion
Ref Expression
rexlimdvaa (𝜑 → (∃𝑥 ∈ 𝐴 𝜓 → 𝜒))
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 ∧ (𝑥 ∈ 𝐴 ∧ 𝜓)) → 𝜒)
21expr 375 . 2 ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝜓 → 𝜒))
32rexlimdva 2668 1 (𝜑 → (∃𝑥 ∈ 𝐴 𝜓 → 𝜒))
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  6773  omp1eomlem  7441  ctmlemr  7455  mulgt0sr  8152  axpre-suploclemres  8275  cnegex  8512  receuap  9008  recapb  9010  rexanuz  11776  fiidxsupcl  12018  climcaucn  12142  fsumiun  12269  dvdsval2  12582  nninfctlemfo  12842  prmind2  12923  nn0sqdcq  13013  sqrtrirr  13014  pcprmpw2  13141  pockthg  13165  dvdsrvald  14509  dvdsrd  14510  dvdsrex  14514  unitgrp  14532  isnzr2  14600  znunit  15103  tgcl  15323  neiint  15404  restopnb  15440  iscnp4  15477  blssexps  15688  blssex  15689  lgsne0  16395  lgsquadlem1  16434
  Copyright terms: Public domain W3C validator