Exercise 7.1 (Structural Model – System of Logic Equations). Create a system of logic equations as structural model of the combinatorial circuit shown as schematic diagram in Fig. 7.1. Prepare this system of equations as PRP so that it can be used later on for an analysis task. It is helpful to use the names of the gates as names of their output signals.

Alternatively a set of local lists of phases can be used as a structural model of a combinatorial circuit. In this case the phases describe the behavior of the gates, and the same names of column variables express connections