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Theorem ax13v 2000
Description: A weaker version of ax-13 1999 with distinct variable restrictions on pairs x, and , . In order to show that this weakening is adequate, this should be the only theorem referencing ax-13 1999 directly. (Contributed by NM, 30-Jun-2016.)
Assertion
Ref Expression
ax13v
Distinct variable groups:   ,   ,

Proof of Theorem ax13v
StepHypRef Expression
1 ax-13 1999 1
Colors of variables: wff setvar class
Syntax hints:  -.wn 3  ->wi 4  A.wal 1393
This theorem is referenced by:  axc9lem1  2001
This theorem was proved from axioms:  ax-13 1999
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