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Homework Help: Truth Tables

  1. Aug 30, 2010 #1
    1. The problem statement, all variables and given/known data

    I'm confused on how to set up the columns of a truth table. Is there a rule for doing this. ex) (P->(~RvQ))^R would you break it into smaller pieces P,Q,R then start inside and work out so next it would be (~RvQ) then (P->(~RvQ) and then (P->(~RvQ))^R
    2. Relevant equations



    3. The attempt at a solution
     
    Last edited: Aug 30, 2010
  2. jcsd
  3. Aug 30, 2010 #2

    Mark44

    Staff: Mentor

    You need one column for each variable, and then columns for the other expressions you need to evaluate. It wouldn't hurt to have separate columns for (~RvQ), (P->(~RvQ), and (P->(~RvQ))^R.

    Since you have three variables, P, Q, and R, you need eight rows.
     
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