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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  |-  ( ph  ->  A  e.  B )
rspcedvd.2  |-  ( (
ph  /\  x  =  A )  ->  ( ps 
<->  ch ) )
rspcedvd.3  |-  ( ph  ->  ch )
Assertion
Ref Expression
rspcedvd  |-  ( ph  ->  E. x  e.  B  ps )
Distinct variable groups:    x, A    x, B    ph, x    ch, x
Allowed substitution hint:    ps( x)

Proof of Theorem rspcedvd
StepHypRef Expression
1 rspcedvd.3 . 2  |-  ( ph  ->  ch )
2 rspcedvd.1 . . 3  |-  ( ph  ->  A  e.  B )
3 rspcedvd.2 . . 3  |-  ( (
ph  /\  x  =  A )  ->  ( ps 
<->  ch ) )
42, 3rspcedv 2933 . 2  |-  ( ph  ->  ( ch  ->  E. x  e.  B  ps )
)
51, 4mpd 13 1  |-  ( ph  ->  E. x  e.  B  ps )
Colors of variables:    wff set class
This proof depends on syntax axioms:    -> wi 4    /\ wa 104    <-> wb 105    = wceq 1402    e. wcel 2209   E.wrex 2529
This proof depends on 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 proof 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 used by:  rspcime  2937  rspcedeq1vd  2939  rspcedeq2vd  2940  updjud  7428  elpq  10066  modqmuladd  10824  modqmuladdnn0  10826  modfzo0difsn  10853  wrdl1exs1  11419  negfi  12017  divconjdvds  12641  2tp1odd  12676  dfgcd2  12816  qredeu  12900  dvdsprmpweq  13143  oddprmdvds  13162  isnsgrp  13780  dfgrp2  13891  grplrinv  13921  grpidinv  13923  dfgrp3m  13963  ringid  14438  xmettx  15736  gausslemma2dlem1a  16382  2lgslem1b  16413  usgredg4  16661  wlkvtxiedg  16791  wlkvtxiedgg  16792  umgr2cwwkdifex  16871  bj-charfunbi  17042
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