ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  exp44 Unicode version

Theorem exp44 370
Description: An exportation inference. (Contributed by NM, 26-Apr-1994.)
Hypothesis
Ref Expression
exp44.1  |-  ( (
ph  /\  ( ( ps  /\  ch )  /\  th ) )  ->  ta )
Assertion
Ref Expression
exp44  |-  ( ph  ->  ( ps  ->  ( ch  ->  ( th  ->  ta ) ) ) )

Proof of Theorem exp44
StepHypRef Expression
1 exp44.1 . . 3  |-  ( (
ph  /\  ( ( ps  /\  ch )  /\  th ) )  ->  ta )
21exp32 362 . 2  |-  ( ph  ->  ( ( ps  /\  ch )  ->  ( th 
->  ta ) ) )
32expd 256 1  |-  ( ph  ->  ( ps  ->  ( ch  ->  ( th  ->  ta ) ) ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 103
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia3 107
This theorem is referenced by: (None)
  Copyright terms: Public domain W3C validator