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Theorem rspcedvd 2913
Description: Restricted existential specialization, using implicit substitution. Variant of rspcedv 2911. (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 2911 . 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 2801
This theorem is referenced by:  rspcime  2914  rspcedeq1vd  2916  rspcedeq2vd  2917  updjud  7257  elpq  9852  modqmuladd  10596  modqmuladdnn0  10598  modfzo0difsn  10625  wrdl1exs1  11170  negfi  11747  divconjdvds  12368  2tp1odd  12403  dfgcd2  12543  qredeu  12627  pw2dvdslemn  12695  dvdsprmpweq  12866  oddprmdvds  12885  gsumfzval  13432  gsumval2  13438  isnsgrp  13447  dfgrp2  13568  grplrinv  13598  grpidinv  13600  dfgrp3m  13640  ringid  13997  xmettx  15192  gausslemma2dlem1a  15745  2lgslem1b  15776  usgredg4  16021  wlkvtxiedg  16066  wlkvtxiedgg  16067  bj-charfunbi  16198
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