Question 1190252
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This is a proof of the Disjunctive Syllogism


B = Ted will get a Big Mac


W = Ted will get a Whopper with cheese


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  B   W   ~W   B v W   ~W & (B v W)   ~W & (B v W) -> B
 
  T   T    F     T          F                   T
  T   F    T     T          T                   T
  F   T    F     T          F                   T
  F   F    T     F          F                   T

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Last column: A conditional is false ONLY if the antecedent is true and the consequent is nevertheless false. Since B is true in the only case where not W and B or W is true, all of the cases are true in the last column.


																
John
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My calculator said it, I believe it, that settles it
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