Quite simply, I am wondering if there is a cleaner (and more easily altered) way to write a system of conditions for an evaluation. For instance, suppose I have something like (I don't think a real MWE is needed here)
FindInstance[a1 && a2 &&...&& an]
a is a conditional expression.
Is there a way to write this as something like the following?
Conditions1 = a1 && a2 && a3; Conditions2 = a4 && a5 &&...&& an; FindInstance[Conditions1 && Conditions2]
Any more practical alternatives are greatly appreciated.