Truth table verification 10












0












$begingroup$


The question:



Let $P$, $Q$, and $R$ be statements. Determine whether or not the two expressions in each pair are logically equivalent. In each case, demonstrate that your answer is correct.



a.) $(P ∧Q) ∧R, P ∧(Q ∧R)$



My attempt using truth table:



begin{array}{|c|c|c|c|}
hline
P& Q & P ∧ Q& R \ hline
T& T& T&T\ hline
F& T & F&F\ hline
T& F & F&F\ hline
F& F & F&F\ hline
end{array}



begin{array}{|c|c|c|c|}
hline
Q& R & Q ∧ R& P \ hline
T& T& T&T\ hline
F& T & F&F\ hline
T& F & F&F\ hline
F& F & F&F\ hline
end{array}



Therefore, they are equivelent.



Is this the correct method/approach to showing that the statements are correct using truth tables?










share|cite|improve this question









$endgroup$

















    0












    $begingroup$


    The question:



    Let $P$, $Q$, and $R$ be statements. Determine whether or not the two expressions in each pair are logically equivalent. In each case, demonstrate that your answer is correct.



    a.) $(P ∧Q) ∧R, P ∧(Q ∧R)$



    My attempt using truth table:



    begin{array}{|c|c|c|c|}
    hline
    P& Q & P ∧ Q& R \ hline
    T& T& T&T\ hline
    F& T & F&F\ hline
    T& F & F&F\ hline
    F& F & F&F\ hline
    end{array}



    begin{array}{|c|c|c|c|}
    hline
    Q& R & Q ∧ R& P \ hline
    T& T& T&T\ hline
    F& T & F&F\ hline
    T& F & F&F\ hline
    F& F & F&F\ hline
    end{array}



    Therefore, they are equivelent.



    Is this the correct method/approach to showing that the statements are correct using truth tables?










    share|cite|improve this question









    $endgroup$















      0












      0








      0





      $begingroup$


      The question:



      Let $P$, $Q$, and $R$ be statements. Determine whether or not the two expressions in each pair are logically equivalent. In each case, demonstrate that your answer is correct.



      a.) $(P ∧Q) ∧R, P ∧(Q ∧R)$



      My attempt using truth table:



      begin{array}{|c|c|c|c|}
      hline
      P& Q & P ∧ Q& R \ hline
      T& T& T&T\ hline
      F& T & F&F\ hline
      T& F & F&F\ hline
      F& F & F&F\ hline
      end{array}



      begin{array}{|c|c|c|c|}
      hline
      Q& R & Q ∧ R& P \ hline
      T& T& T&T\ hline
      F& T & F&F\ hline
      T& F & F&F\ hline
      F& F & F&F\ hline
      end{array}



      Therefore, they are equivelent.



      Is this the correct method/approach to showing that the statements are correct using truth tables?










      share|cite|improve this question









      $endgroup$




      The question:



      Let $P$, $Q$, and $R$ be statements. Determine whether or not the two expressions in each pair are logically equivalent. In each case, demonstrate that your answer is correct.



      a.) $(P ∧Q) ∧R, P ∧(Q ∧R)$



      My attempt using truth table:



      begin{array}{|c|c|c|c|}
      hline
      P& Q & P ∧ Q& R \ hline
      T& T& T&T\ hline
      F& T & F&F\ hline
      T& F & F&F\ hline
      F& F & F&F\ hline
      end{array}



      begin{array}{|c|c|c|c|}
      hline
      Q& R & Q ∧ R& P \ hline
      T& T& T&T\ hline
      F& T & F&F\ hline
      T& F & F&F\ hline
      F& F & F&F\ hline
      end{array}



      Therefore, they are equivelent.



      Is this the correct method/approach to showing that the statements are correct using truth tables?







      calculus proof-verification






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      asked Jan 8 at 22:57









      ForextraderForextrader

      717




      717






















          1 Answer
          1






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          0












          $begingroup$

          It is correct. Although, you might use the fact that $land$ is associative unless the problem specifically doesn't want you to do that. If that is the case, then the truth table is the only way.






          share|cite|improve this answer









          $endgroup$













          • $begingroup$
            Thank you, yes the professor had said to use truth tables.
            $endgroup$
            – Forextrader
            Jan 8 at 23:02










          • $begingroup$
            @Forextrader Just to make the answer more complete, add one more column in the end for both tables, that includes the full expressions.
            $endgroup$
            – EuxhenH
            Jan 8 at 23:04












          • $begingroup$
            Ah that's a good thought. Thank you
            $endgroup$
            – Forextrader
            Jan 8 at 23:05











          Your Answer





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          1






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          active

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          0












          $begingroup$

          It is correct. Although, you might use the fact that $land$ is associative unless the problem specifically doesn't want you to do that. If that is the case, then the truth table is the only way.






          share|cite|improve this answer









          $endgroup$













          • $begingroup$
            Thank you, yes the professor had said to use truth tables.
            $endgroup$
            – Forextrader
            Jan 8 at 23:02










          • $begingroup$
            @Forextrader Just to make the answer more complete, add one more column in the end for both tables, that includes the full expressions.
            $endgroup$
            – EuxhenH
            Jan 8 at 23:04












          • $begingroup$
            Ah that's a good thought. Thank you
            $endgroup$
            – Forextrader
            Jan 8 at 23:05
















          0












          $begingroup$

          It is correct. Although, you might use the fact that $land$ is associative unless the problem specifically doesn't want you to do that. If that is the case, then the truth table is the only way.






          share|cite|improve this answer









          $endgroup$













          • $begingroup$
            Thank you, yes the professor had said to use truth tables.
            $endgroup$
            – Forextrader
            Jan 8 at 23:02










          • $begingroup$
            @Forextrader Just to make the answer more complete, add one more column in the end for both tables, that includes the full expressions.
            $endgroup$
            – EuxhenH
            Jan 8 at 23:04












          • $begingroup$
            Ah that's a good thought. Thank you
            $endgroup$
            – Forextrader
            Jan 8 at 23:05














          0












          0








          0





          $begingroup$

          It is correct. Although, you might use the fact that $land$ is associative unless the problem specifically doesn't want you to do that. If that is the case, then the truth table is the only way.






          share|cite|improve this answer









          $endgroup$



          It is correct. Although, you might use the fact that $land$ is associative unless the problem specifically doesn't want you to do that. If that is the case, then the truth table is the only way.







          share|cite|improve this answer












          share|cite|improve this answer



          share|cite|improve this answer










          answered Jan 8 at 23:01









          EuxhenHEuxhenH

          482210




          482210












          • $begingroup$
            Thank you, yes the professor had said to use truth tables.
            $endgroup$
            – Forextrader
            Jan 8 at 23:02










          • $begingroup$
            @Forextrader Just to make the answer more complete, add one more column in the end for both tables, that includes the full expressions.
            $endgroup$
            – EuxhenH
            Jan 8 at 23:04












          • $begingroup$
            Ah that's a good thought. Thank you
            $endgroup$
            – Forextrader
            Jan 8 at 23:05


















          • $begingroup$
            Thank you, yes the professor had said to use truth tables.
            $endgroup$
            – Forextrader
            Jan 8 at 23:02










          • $begingroup$
            @Forextrader Just to make the answer more complete, add one more column in the end for both tables, that includes the full expressions.
            $endgroup$
            – EuxhenH
            Jan 8 at 23:04












          • $begingroup$
            Ah that's a good thought. Thank you
            $endgroup$
            – Forextrader
            Jan 8 at 23:05
















          $begingroup$
          Thank you, yes the professor had said to use truth tables.
          $endgroup$
          – Forextrader
          Jan 8 at 23:02




          $begingroup$
          Thank you, yes the professor had said to use truth tables.
          $endgroup$
          – Forextrader
          Jan 8 at 23:02












          $begingroup$
          @Forextrader Just to make the answer more complete, add one more column in the end for both tables, that includes the full expressions.
          $endgroup$
          – EuxhenH
          Jan 8 at 23:04






          $begingroup$
          @Forextrader Just to make the answer more complete, add one more column in the end for both tables, that includes the full expressions.
          $endgroup$
          – EuxhenH
          Jan 8 at 23:04














          $begingroup$
          Ah that's a good thought. Thank you
          $endgroup$
          – Forextrader
          Jan 8 at 23:05




          $begingroup$
          Ah that's a good thought. Thank you
          $endgroup$
          – Forextrader
          Jan 8 at 23:05


















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