Practice HW to be added to the one due monday

Suppose that a four$-$variable function is defined by

$f(x_1,x_2,x_3,x_4)={\displaystyle \underset{?}{\overset{?}{}}}m(3,7,9,12,13,14,15)$

Obtain the canonical SOP expression for the function and then simplify it to obtain the minimal sum$-$of$-$products.

Solution verification

$={\stackrel{}{x}}_1{x}_3{x}_4+x_1{\stackrel{}{x}}_3{x}_4+x_1{x}_2$