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Homework Help: Rules of implication

  1. Apr 13, 2012 #1
    Suppose I know that [(P implies ~A) and (P implies B) and (P implies C)] is impossible. Does this means that the following statement is true: [(P implies A) and (P implies B) and (P implies C)]?

    Any help is greatly appreciated!!!
  2. jcsd
  3. Apr 13, 2012 #2
    so basically you are asking if (P implies ~A) implies that (P implies A) and it does not..
  4. Apr 13, 2012 #3
    I guess you're right! P cannot imply both A and ~A...
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