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Theorem 19.23bi 2047
Description: Inference form of Theorem 19.23 of [Margaris] p. 90, see 19.23 2065. (Contributed by NM, 12-Mar-1993.)
Hypothesis
Ref Expression
19.23bi.1 (∃𝑥𝜑𝜓)
Assertion
Ref Expression
19.23bi (𝜑𝜓)

Proof of Theorem 19.23bi
StepHypRef Expression
1 19.8a 2037 . 2 (𝜑 → ∃𝑥𝜑)
2 19.23bi.1 . 2 (∃𝑥𝜑𝜓)
31, 2syl 17 1 (𝜑𝜓)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wex 1694
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1712  ax-4 1727  ax-5 1826  ax-6 1874  ax-7 1921  ax-12 2032
This theorem depends on definitions:  df-bi 195  df-ex 1695
This theorem is referenced by:  equs5eALT  2164  equs5e  2336  mo2v  2464  2mo  2538  copsexg  4876  axreg2  8358  hash1to3  13078  ustuqtop4  21800  f1omptsnlem  32162  mptsnunlem  32164
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