### Logic and Simplifying an Expression : Simplify min(a,b,c,d) + max(a,b,c,d)

Simplify the following expression: min(a,b,c,d) + max(a,b,c,d) so that you are using three or less variables in each part of the equation. Basically, they want the expression rewritten so that there is no "string" of four variables in it, and so it can be used to solve for the min and max. For example, assuming a and d ar