In many cases the identification of systems by means of fuzzy rules is
given by taking these rules from a predetermined set of possible ones
. In this case, the correct description of the system is to be given b
y a finite set of rules each with an associated weight which assesses
its correctness or accuracy. Here we present a method to learn this co
nsistence level or weight by a neural network. The design of this neur
al network as well as the features of the training models are discusse
d. The paper concludes with an example.