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Theorem axfrege58a 37671
Description: Identical to anifp 1019. Justification for ax-frege58a 37672. (Contributed by RP, 28-Mar-2020.)
Assertion
Ref Expression
axfrege58a ((𝜓𝜒) → if-(𝜑, 𝜓, 𝜒))

Proof of Theorem axfrege58a
StepHypRef Expression
1 anifp 1019 1 ((𝜓𝜒) → if-(𝜑, 𝜓, 𝜒))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 384  if-wif 1011
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-ifp 1012
This theorem is referenced by: (None)
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