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Theorem mdandyv6 27914
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
mdandyv6.1  |-  ( ph  <->  F.  )
mdandyv6.2  |-  ( ps  <->  T.  )
mdandyv6.3  |-  ( ch  <->  F.  )
mdandyv6.4  |-  ( th  <->  T.  )
mdandyv6.5  |-  ( ta  <->  T.  )
mdandyv6.6  |-  ( et  <->  F.  )
Assertion
Ref Expression
mdandyv6  |-  ( ( ( ( ch  <->  ph )  /\  ( th  <->  ps ) )  /\  ( ta  <->  ps ) )  /\  ( et  <->  ph ) )

Proof of Theorem mdandyv6
StepHypRef Expression
1 mdandyv6.3 . . . . 5  |-  ( ch  <->  F.  )
2 mdandyv6.1 . . . . 5  |-  ( ph  <->  F.  )
31, 2bothfbothsame 27882 . . . 4  |-  ( ch  <->  ph )
4 mdandyv6.4 . . . . 5  |-  ( th  <->  T.  )
5 mdandyv6.2 . . . . 5  |-  ( ps  <->  T.  )
64, 5bothtbothsame 27881 . . . 4  |-  ( th  <->  ps )
73, 6pm3.2i 443 . . 3  |-  ( ( ch  <->  ph )  /\  ( th 
<->  ps ) )
8 mdandyv6.5 . . . 4  |-  ( ta  <->  T.  )
98, 5bothtbothsame 27881 . . 3  |-  ( ta  <->  ps )
107, 9pm3.2i 443 . 2  |-  ( ( ( ch  <->  ph )  /\  ( th  <->  ps ) )  /\  ( ta  <->  ps ) )
11 mdandyv6.6 . . 3  |-  ( et  <->  F.  )
1211, 2bothfbothsame 27882 . 2  |-  ( et  <->  ph )
1310, 12pm3.2i 443 1  |-  ( ( ( ( ch  <->  ph )  /\  ( th  <->  ps ) )  /\  ( ta  <->  ps ) )  /\  ( et  <->  ph ) )
Colors of variables: wff set class
Syntax hints:    <-> wb 178    /\ wa 360    T. wtru 1326    F. wfal 1327
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 179  df-an 362
  Copyright terms: Public domain W3C validator