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Theorem simplbda 370
Description: Deduction eliminating a conjunct. (Contributed by NM, 22-Oct-2007.)
Hypothesis
Ref Expression
pm3.26bda.1 (𝜑 → (𝜓 ↔ (𝜒𝜃)))
Assertion
Ref Expression
simplbda ((𝜑𝜓) → 𝜃)

Proof of Theorem simplbda
StepHypRef Expression
1 pm3.26bda.1 . . 3 (𝜑 → (𝜓 ↔ (𝜒𝜃)))
21biimpa 284 . 2 ((𝜑𝜓) → (𝜒𝜃))
32simprd 111 1 ((𝜑𝜓) → 𝜃)
Colors of variables: wff set class
Syntax hints:  wi 4  wa 101  wb 102
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 103  ax-ia2 104
This theorem depends on definitions:  df-bi 114
This theorem is referenced by: (None)
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