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Theorem ax6dgen 1824
Description: Tarski's system uses the weaker ax6v 1748 instead of the bundled ax-6 1747, so here we show that the degenerate case of ax-6 1747 can be derived. (Contributed by NM, 23-Apr-2017.)
Assertion
Ref Expression
ax6dgen

Proof of Theorem ax6dgen
StepHypRef Expression
1 equid 1791 . 2
21notnoti 123 . . 3
32spfalw 1786 . 2
41, 3mt2 179 1
Colors of variables: wff setvar class
Syntax hints:  -.wn 3  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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