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Theorem mdandyvrx1 27927
Description: Given the exclusivities set in the hypotheses, there exist a proof where ch, th, ta, et exclude ze, si accordingly (Contributed by Jarvin Udandy, 7-Sep-2016.)
Hypotheses
Ref Expression
mdandyvrx1.1  |-  ( ph \/_ ze )
mdandyvrx1.2  |-  ( ps
\/_ si )
mdandyvrx1.3  |-  ( ch  <->  ps )
mdandyvrx1.4  |-  ( th  <->  ph )
mdandyvrx1.5  |-  ( ta  <->  ph )
mdandyvrx1.6  |-  ( et  <->  ph )
Assertion
Ref Expression
mdandyvrx1  |-  ( ( ( ( ch \/_ si )  /\  ( th
\/_ ze ) )  /\  ( ta \/_ ze )
)  /\  ( et \/_ ze ) )

Proof of Theorem mdandyvrx1
StepHypRef Expression
1 mdandyvrx1.2 . . . . 5  |-  ( ps
\/_ si )
2 mdandyvrx1.3 . . . . 5  |-  ( ch  <->  ps )
31, 2axorbciffatcxorb 27873 . . . 4  |-  ( ch
\/_ si )
4 mdandyvrx1.1 . . . . 5  |-  ( ph \/_ ze )
5 mdandyvrx1.4 . . . . 5  |-  ( th  <->  ph )
64, 5axorbciffatcxorb 27873 . . . 4  |-  ( th
\/_ ze )
73, 6pm3.2i 441 . . 3  |-  ( ( ch \/_ si )  /\  ( th \/_ ze ) )
8 mdandyvrx1.5 . . . 4  |-  ( ta  <->  ph )
94, 8axorbciffatcxorb 27873 . . 3  |-  ( ta
\/_ ze )
107, 9pm3.2i 441 . 2  |-  ( ( ( ch \/_ si )  /\  ( th \/_ ze ) )  /\  ( ta \/_ ze ) )
11 mdandyvrx1.6 . . 3  |-  ( et  <->  ph )
124, 11axorbciffatcxorb 27873 . 2  |-  ( et
\/_ ze )
1310, 12pm3.2i 441 1  |-  ( ( ( ( ch \/_ si )  /\  ( th
\/_ ze ) )  /\  ( ta \/_ ze )
)  /\  ( et \/_ ze ) )
Colors of variables: wff set class
Syntax hints:    <-> wb 176    /\ wa 358   \/_wxo 1295
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8
This theorem depends on definitions:  df-bi 177  df-an 360  df-xor 1296
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