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Theorem rspcedvd 2914
Description: Restricted existential specialization, using implicit substitution. Variant of rspcedv 2912. (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 2912 . 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 1395  wcel 2200  wrex 2509
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 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-ext 2211
This theorem depends on definitions:  df-bi 117  df-tru 1398  df-nf 1507  df-sb 1809  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-rex 2514  df-v 2802
This theorem is referenced by:  rspcime  2915  rspcedeq1vd  2917  rspcedeq2vd  2918  updjud  7275  elpq  9876  modqmuladd  10621  modqmuladdnn0  10623  modfzo0difsn  10650  wrdl1exs1  11199  negfi  11782  divconjdvds  12403  2tp1odd  12438  dfgcd2  12578  qredeu  12662  pw2dvdslemn  12730  dvdsprmpweq  12901  oddprmdvds  12920  gsumfzval  13467  gsumval2  13473  isnsgrp  13482  dfgrp2  13603  grplrinv  13633  grpidinv  13635  dfgrp3m  13675  ringid  14032  xmettx  15227  gausslemma2dlem1a  15780  2lgslem1b  15811  usgredg4  16059  wlkvtxiedg  16156  wlkvtxiedgg  16157  umgr2cwwkdifex  16234  bj-charfunbi  16356
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