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Theorem mpan2i 522
Description: An inference based on modus ponens.
Hypotheses
Ref Expression
mpan2i.1 χ
mpan2i.2 (φ → ((ψχ) → θ))
Assertion
Ref Expression
mpan2i (φ → (ψθ))

Proof of Theorem mpan2i
StepHypRef Expression
1 mpan2i.1 . 2 χ
2 mpan2i.2 . . 3 (φ → ((ψχ) → θ))
32exp3a 292 . 2 (φ → (ψ → (χθ)))
41, 3mpii 45 1 (φ → (ψθ))
Colors of variables: wff set class
Syntax hints:   → wi 2   ∧ wa 196
This theorem is referenced by:  mpan22 532  fr2nr 2177  fr3nr 2178  sdomsdomcard 3654  cflecard 3707  genpprecl 3898  nnleltp1t 4448  nominpos 4509  lt0nnn0 4549  sqrlem6 4736  sqrlem12 4742  sqr00t 4770
This theorem was proved from axioms:  ax-1 3  ax-2 4  ax-3 5  ax-mp 6
This theorem depends on definitions:  df-bi 128  df-an 198
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