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Theorem cbvralv2 3147
Description: Rule used to change the bound variable in a restricted universal quantifier with implicit substitution which also changes the quantifier domain. (Contributed by David Moews, 1-May-2017.)
Hypotheses
Ref Expression
cbvralv2.1  |-  ( x  =  y  ->  ( ps 
<->  ch ) )
cbvralv2.2  |-  ( x  =  y  ->  A  =  B )
Assertion
Ref Expression
cbvralv2  |-  ( A. x  e.  A  ps  <->  A. y  e.  B  ch )
Distinct variable groups:    y, A    ps, y    x, B    ch, x
Allowed substitution hints:    ps( x)    ch( y)    A( x)    B( y)

Proof of Theorem cbvralv2
StepHypRef Expression
1 nfcv 2336 . 2  |-  F/_ y A
2 nfcv 2336 . 2  |-  F/_ x B
3 nfv 1539 . 2  |-  F/ y ps
4 nfv 1539 . 2  |-  F/ x ch
5 cbvralv2.2 . 2  |-  ( x  =  y  ->  A  =  B )
6 cbvralv2.1 . 2  |-  ( x  =  y  ->  ( ps 
<->  ch ) )
71, 2, 3, 4, 5, 6cbvralcsf 3143 1  |-  ( A. x  e.  A  ps  <->  A. y  e.  B  ch )
Colors of variables: wff set class
Syntax hints:    -> wi 4    <-> wb 105    = wceq 1364   A.wral 2472
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 710  ax-5 1458  ax-7 1459  ax-gen 1460  ax-ie1 1504  ax-ie2 1505  ax-8 1515  ax-10 1516  ax-11 1517  ax-i12 1518  ax-bndl 1520  ax-4 1521  ax-17 1537  ax-i9 1541  ax-ial 1545  ax-i5r 1546  ax-ext 2175
This theorem depends on definitions:  df-bi 117  df-tru 1367  df-nf 1472  df-sb 1774  df-clab 2180  df-cleq 2186  df-clel 2189  df-nfc 2325  df-ral 2477  df-sbc 2986  df-csb 3081
This theorem is referenced by: (None)
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