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Theorem impac 387
Description: Importation with conjunction in consequent.
Hypothesis
Ref Expression
impac.1 (φ → (ψχ))
Assertion
Ref Expression
impac ((φψ) → (χψ))

Proof of Theorem impac
StepHypRef Expression
1 impac.1 . . 3 (φ → (ψχ))
21ancrd 299 . 2 (φ → (ψ → (χψ)))
32imp 350 1 ((φψ) → (χψ))
Colors of variables: wff set class
Syntax hints:   → wi 3   ⋀ wa 223
This theorem is referenced by:  imdistanri 444  zfrep6 3600  tfrlem5 3900  ac5b 4725  sqr2irr 6659  fsumsplit 6958  projlem27 9128
This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-3 6  ax-mp 7
This theorem depends on definitions:  df-bi 147  df-an 225
Copyright terms: Public domain