Figure 23.

A simple example of infeasible explicit preferences (arrow-head vectors, Pref 1, Pref 2 and Pref 3), and the emergent preferences generated by their combinations (circle-head vectors). The open circle represents an emergent preference rating of the combination of Pref 1, Pref 2 and Pref 3. This rating generates a ranking of consequent 1 higher than consequent 2. However, this ranking conflicts with any explicitly programmed production that matches antecedents 1 through 3, yet specifies a rating that ranks the alternative outcome (consequent 2) higher. In order to make such a system of explicit ratings feasible, we add a conjunction detector (a binary AND gate) to the pool of consequent units, Pref 2 ⋀ 3.