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Theorem ax13dgen2 1834
Description: Degenerate instance of ax-13 1999 where bundled variables and have a common substitution. Uses only Tarski's FOL axiom schemes. (Contributed by NM, 13-Apr-2017.)
Assertion
Ref Expression
ax13dgen2

Proof of Theorem ax13dgen2
StepHypRef Expression
1 equcomi 1793 . 2
2 pm2.21 108 . 2
31, 2syl5 32 1
Colors of variables: wff setvar class
Syntax hints:  -.wn 3  ->wi 4  A.wal 1393
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1618  ax-4 1631  ax-5 1704  ax-6 1747  ax-7 1790
This theorem depends on definitions:  df-bi 185  df-ex 1613
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