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Logic: Possible Typo in Textbook

  1. Sep 11, 2011 #1

    Dembadon

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    Gold Member

    It's possible that I'm not understanding the diagram and their reasoning, but I wanted to check with some people here before I come to a conclusion.

    1. The problem statement, all variables and given/known data

    Klenk-PF.jpg

    2. Relevant equations



    3. The attempt at a solution

    I don't understand why the book says the formula is false, yet there is a "T" at the bottom of the computation.

    The book is, Understanding Symbolic Logic, 5th ed. by Virginia Klenk.
     
    Last edited: Sep 11, 2011
  2. jcsd
  3. Sep 11, 2011 #2

    Stephen Tashi

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    Science Advisor

    The 'T' at the bottom of the diagram is a typo. It should be an 'F'. The words you highlighted are correct.
     
  4. Sep 11, 2011 #3

    Dembadon

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    Gold Member

    Thank you for verifying, Stephen.
     
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