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Theorem cbval2v 1798
 Description: Rule used to change bound variables, using implicit substitution. (Contributed by NM, 4-Feb-2005.)
Hypothesis
Ref Expression
cbval2v.1
Assertion
Ref Expression
cbval2v
Distinct variable groups:   ,,   ,,   ,   ,
Allowed substitution hints:   (,)   (,)

Proof of Theorem cbval2v
StepHypRef Expression
1 nfv 1421 . 2
2 nfv 1421 . 2
3 nfv 1421 . 2
4 nfv 1421 . 2
5 cbval2v.1 . 2
61, 2, 3, 4, 5cbval2 1796 1
 Colors of variables: wff set class Syntax hints:   wi 4   wa 97   wb 98  wal 1241 This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101  ax-5 1336  ax-7 1337  ax-gen 1338  ax-ie1 1382  ax-ie2 1383  ax-8 1395  ax-4 1400  ax-17 1419  ax-i9 1423  ax-ial 1427  ax-i5r 1428 This theorem depends on definitions:  df-bi 110  df-nf 1350 This theorem is referenced by: (None)
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