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Theorem ax10lem1 1936
Description: Lemma for ax10 1944. Change bound variable. (Contributed by NM, 22-Jul-2015.)
Assertion
Ref Expression
ax10lem1
Distinct variable groups:   ,   ,

Proof of Theorem ax10lem1
Dummy variable is distinct from all other variables.
StepHypRef Expression
1 ax-8 1675 . . 3
21cbvalivw 1674 . 2
3 ax-8 1675 . . 3
43cbvalivw 1674 . 2
52, 4syl 15 1
Colors of variables: wff setvar class
Syntax hints:   wi 4  wal 1540
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1546  ax-5 1557  ax-17 1616  ax-9 1654  ax-8 1675
This theorem depends on definitions:  df-bi 177  df-an 360  df-ex 1542
This theorem is referenced by:  ax10lem3  1938  ax10lem4  1941  ax10lem5  1942
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