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Theorem rspcedvd 2935
Description: Restricted existential specialization, using implicit substitution. Variant of rspcedv 2933. (Contributed by AV, 27-Nov-2019.)
Hypotheses
Ref Expression
rspcedvd.1 (𝜑𝐴𝐵)
rspcedvd.2 ((𝜑𝑥 = 𝐴) → (𝜓𝜒))
rspcedvd.3 (𝜑𝜒)
Assertion
Ref Expression
rspcedvd (𝜑 → ∃𝑥𝐵 𝜓)
Distinct variable groups:   𝑥,𝐴   𝑥,𝐵   𝜑,𝑥   𝜒,𝑥
Allowed substitution hint:   𝜓(𝑥)

Proof of Theorem rspcedvd
StepHypRef Expression
1 rspcedvd.3 . 2 (𝜑𝜒)
2 rspcedvd.1 . . 3 (𝜑𝐴𝐵)
3 rspcedvd.2 . . 3 ((𝜑𝑥 = 𝐴) → (𝜓𝜒))
42, 3rspcedv 2933 . 2 (𝜑 → (𝜒 → ∃𝑥𝐵 𝜓))
51, 4mpd 13 1 (𝜑 → ∃𝑥𝐵 𝜓)
Colors of variables: wff set class
Syntax hints:  wi 4  wa 104  wb 105   = wceq 1402  wcel 2209  wrex 2529
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-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-ext 2220
This theorem depends on definitions:  df-bi 117  df-tru 1405  df-nf 1514  df-sb 1816  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-rex 2534  df-v 2823
This theorem is referenced by:  rspcime  2937  rspcedeq1vd  2939  rspcedeq2vd  2940  updjud  7416  elpq  10032  modqmuladd  10786  modqmuladdnn0  10788  modfzo0difsn  10815  wrdl1exs1  11380  negfi  11977  divconjdvds  12599  2tp1odd  12634  dfgcd2  12774  qredeu  12858  pw2dvdslemn  12926  dvdsprmpweq  13097  oddprmdvds  13116  isnsgrp  13704  dfgrp2  13815  grplrinv  13845  grpidinv  13847  dfgrp3m  13887  ringid  14314  xmettx  15594  gausslemma2dlem1a  16160  2lgslem1b  16191  usgredg4  16439  wlkvtxiedg  16569  wlkvtxiedgg  16570  umgr2cwwkdifex  16649  bj-charfunbi  16820
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