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Theorem mpisyl 1351
Description: A syllogism combined with a modus ponens inference. (Contributed by Alan Sare, 25-Jul-2011.)
Hypotheses
Ref Expression
mpisyl.1 (𝜑𝜓)
mpisyl.2 𝜒
mpisyl.3 (𝜓 → (𝜒𝜃))
Assertion
Ref Expression
mpisyl (𝜑𝜃)

Proof of Theorem mpisyl
StepHypRef Expression
1 mpisyl.1 . 2 (𝜑𝜓)
2 mpisyl.2 . . 3 𝜒
3 mpisyl.3 . . 3 (𝜓 → (𝜒𝜃))
42, 3mpi 15 . 2 (𝜓𝜃)
51, 4syl 14 1 (𝜑𝜃)
Colors of variables: wff set class
Syntax hints:  wi 4
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7
This theorem is referenced by:  ceqsex  2609  reusv1  4218  fliftcnv  5463  fliftfun  5464  tfrlemibfn  5973  ordiso  6416  ltoddhalfle  10205
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