1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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


    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.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Threads - Truth Tables Date
Truth Table Rules of Inference May 9, 2013
Why is this truth table incorrect? Sep 17, 2012
Truth tables for these calculus formulae Apr 30, 2012
Truth tables and implications Sep 8, 2011
Truth Tables Jul 12, 2011