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Theorem mdandyv14 41130
Description: Given the equivalences set in the hypotheses, there exist a proof where ch, th, ta, et match ph, ps accordingly. (Contributed by Jarvin Udandy, 6-Sep-2016.)
Hypotheses
Ref Expression
mdandyv14.1  |-  ( ph  <-> F.  )
mdandyv14.2  |-  ( ps  <-> T.  )
mdandyv14.3  |-  ( ch  <-> F.  )
mdandyv14.4  |-  ( th  <-> T.  )
mdandyv14.5  |-  ( ta  <-> T.  )
mdandyv14.6  |-  ( et  <-> T.  )
Assertion
Ref Expression
mdandyv14  |-  ( ( ( ( ch  <->  ph )  /\  ( th  <->  ps ) )  /\  ( ta  <->  ps ) )  /\  ( et  <->  ps ) )

Proof of Theorem mdandyv14
StepHypRef Expression
1 mdandyv14.3 . . . . 5  |-  ( ch  <-> F.  )
2 mdandyv14.1 . . . . 5  |-  ( ph  <-> F.  )
31, 2bothfbothsame 41067 . . . 4  |-  ( ch  <->  ph )
4 mdandyv14.4 . . . . 5  |-  ( th  <-> T.  )
5 mdandyv14.2 . . . . 5  |-  ( ps  <-> T.  )
64, 5bothtbothsame 41066 . . . 4  |-  ( th  <->  ps )
73, 6pm3.2i 471 . . 3  |-  ( ( ch  <->  ph )  /\  ( th 
<->  ps ) )
8 mdandyv14.5 . . . 4  |-  ( ta  <-> T.  )
98, 5bothtbothsame 41066 . . 3  |-  ( ta  <->  ps )
107, 9pm3.2i 471 . 2  |-  ( ( ( ch  <->  ph )  /\  ( th  <->  ps ) )  /\  ( ta  <->  ps ) )
11 mdandyv14.6 . . 3  |-  ( et  <-> T.  )
1211, 5bothtbothsame 41066 . 2  |-  ( et  <->  ps )
1310, 12pm3.2i 471 1  |-  ( ( ( ( ch  <->  ph )  /\  ( th  <->  ps ) )  /\  ( ta  <->  ps ) )  /\  ( et  <->  ps ) )
Colors of variables: wff setvar class
Syntax hints:    <-> wb 196    /\ wa 384   T. wtru 1484   F. wfal 1488
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8
This theorem depends on definitions:  df-bi 197  df-an 386
This theorem is referenced by: (None)
  Copyright terms: Public domain W3C validator