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Theorem rspcedvd 2929
Description: Restricted existential specialization, using implicit substitution. Variant of rspcedv 2927. (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 2927 . 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 1398  wcel 2205  wrex 2523
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 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-ext 2216
This theorem depends on definitions:  df-bi 117  df-tru 1401  df-nf 1510  df-sb 1812  df-clab 2221  df-cleq 2227  df-clel 2230  df-nfc 2375  df-rex 2528  df-v 2817
This theorem is referenced by:  rspcime  2931  rspcedeq1vd  2933  rspcedeq2vd  2934  updjud  7386  elpq  10002  modqmuladd  10755  modqmuladdnn0  10757  modfzo0difsn  10784  wrdl1exs1  11345  negfi  11942  divconjdvds  12564  2tp1odd  12599  dfgcd2  12739  qredeu  12823  pw2dvdslemn  12891  dvdsprmpweq  13062  oddprmdvds  13081  gsumfzval  13658  gsumval2  13664  isnsgrp  13673  dfgrp2  13786  grplrinv  13816  grpidinv  13818  dfgrp3m  13858  ringid  14273  xmettx  15505  gausslemma2dlem1a  16061  2lgslem1b  16092  usgredg4  16340  wlkvtxiedg  16470  wlkvtxiedgg  16471  umgr2cwwkdifex  16550  bj-charfunbi  16721
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