Need correction for my Shannon expansion problem












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So I have this given function that needs to be constructed into a Binary Decision Diagram, so that means I have to use Shannon expansion to connect the nodes for the diagram.



f = (¬x1 * x2 * ¬x3) + (¬x1 * ¬x2 * x3 * x4) + ( ¬x1 * x2 * ¬x3) + (¬x1 * ¬x2 * x3) + (x1 * x4)



Variable order: x1 < x2 < x3 < x4



My solution:



¬x1( x2¬x3 + ¬x2x3x4 + x2¬x3 + ¬x2x3) + x1(x4)



¬x1[ x2(¬x3 + ¬x3) + ¬x2(x3x4 + x3)] + x1(x4)



¬x1[ x2(¬x3) + ¬x2(x3(x4) + x3)] + x1(x4)



¬x1 x2 ¬x3 + ¬x1 ¬x2 x3 x4 + ¬x1 ¬x2 x3 + x1 x4



Is my solution correct?










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    $begingroup$
    And your question is...?
    $endgroup$
    – dkaeae
    Jan 10 at 16:47
















0












$begingroup$


So I have this given function that needs to be constructed into a Binary Decision Diagram, so that means I have to use Shannon expansion to connect the nodes for the diagram.



f = (¬x1 * x2 * ¬x3) + (¬x1 * ¬x2 * x3 * x4) + ( ¬x1 * x2 * ¬x3) + (¬x1 * ¬x2 * x3) + (x1 * x4)



Variable order: x1 < x2 < x3 < x4



My solution:



¬x1( x2¬x3 + ¬x2x3x4 + x2¬x3 + ¬x2x3) + x1(x4)



¬x1[ x2(¬x3 + ¬x3) + ¬x2(x3x4 + x3)] + x1(x4)



¬x1[ x2(¬x3) + ¬x2(x3(x4) + x3)] + x1(x4)



¬x1 x2 ¬x3 + ¬x1 ¬x2 x3 x4 + ¬x1 ¬x2 x3 + x1 x4



Is my solution correct?










share|cite|improve this question











$endgroup$








  • 1




    $begingroup$
    And your question is...?
    $endgroup$
    – dkaeae
    Jan 10 at 16:47














0












0








0





$begingroup$


So I have this given function that needs to be constructed into a Binary Decision Diagram, so that means I have to use Shannon expansion to connect the nodes for the diagram.



f = (¬x1 * x2 * ¬x3) + (¬x1 * ¬x2 * x3 * x4) + ( ¬x1 * x2 * ¬x3) + (¬x1 * ¬x2 * x3) + (x1 * x4)



Variable order: x1 < x2 < x3 < x4



My solution:



¬x1( x2¬x3 + ¬x2x3x4 + x2¬x3 + ¬x2x3) + x1(x4)



¬x1[ x2(¬x3 + ¬x3) + ¬x2(x3x4 + x3)] + x1(x4)



¬x1[ x2(¬x3) + ¬x2(x3(x4) + x3)] + x1(x4)



¬x1 x2 ¬x3 + ¬x1 ¬x2 x3 x4 + ¬x1 ¬x2 x3 + x1 x4



Is my solution correct?










share|cite|improve this question











$endgroup$




So I have this given function that needs to be constructed into a Binary Decision Diagram, so that means I have to use Shannon expansion to connect the nodes for the diagram.



f = (¬x1 * x2 * ¬x3) + (¬x1 * ¬x2 * x3 * x4) + ( ¬x1 * x2 * ¬x3) + (¬x1 * ¬x2 * x3) + (x1 * x4)



Variable order: x1 < x2 < x3 < x4



My solution:



¬x1( x2¬x3 + ¬x2x3x4 + x2¬x3 + ¬x2x3) + x1(x4)



¬x1[ x2(¬x3 + ¬x3) + ¬x2(x3x4 + x3)] + x1(x4)



¬x1[ x2(¬x3) + ¬x2(x3(x4) + x3)] + x1(x4)



¬x1 x2 ¬x3 + ¬x1 ¬x2 x3 x4 + ¬x1 ¬x2 x3 + x1 x4



Is my solution correct?







computer-science






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share|cite|improve this question













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share|cite|improve this question








edited Jan 11 at 20:37







NoobProgrammer

















asked Jan 10 at 16:03









NoobProgrammerNoobProgrammer

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  • 1




    $begingroup$
    And your question is...?
    $endgroup$
    – dkaeae
    Jan 10 at 16:47














  • 1




    $begingroup$
    And your question is...?
    $endgroup$
    – dkaeae
    Jan 10 at 16:47








1




1




$begingroup$
And your question is...?
$endgroup$
– dkaeae
Jan 10 at 16:47




$begingroup$
And your question is...?
$endgroup$
– dkaeae
Jan 10 at 16:47










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