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Theorem rspcedvd 2917
Description: Restricted existential specialization, using implicit substitution. Variant of rspcedv 2915. (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 2915 . 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 2202  wrex 2512
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 2213
This theorem depends on definitions:  df-bi 117  df-tru 1401  df-nf 1510  df-sb 1811  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-rex 2517  df-v 2805
This theorem is referenced by:  rspcime  2918  rspcedeq1vd  2920  rspcedeq2vd  2921  updjud  7324  elpq  9926  modqmuladd  10672  modqmuladdnn0  10674  modfzo0difsn  10701  wrdl1exs1  11253  negfi  11849  divconjdvds  12471  2tp1odd  12506  dfgcd2  12646  qredeu  12730  pw2dvdslemn  12798  dvdsprmpweq  12969  oddprmdvds  12988  gsumfzval  13535  gsumval2  13541  isnsgrp  13550  dfgrp2  13671  grplrinv  13701  grpidinv  13703  dfgrp3m  13743  ringid  14101  xmettx  15301  gausslemma2dlem1a  15857  2lgslem1b  15888  usgredg4  16136  wlkvtxiedg  16266  wlkvtxiedgg  16267  umgr2cwwkdifex  16346  bj-charfunbi  16507
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