Now, we can determine another fuzzy relation, say S ∼ , to relate current to motor speed, that is, I ∼a to N ∼ . Using the operation of composition, we could then compute a relation, say T ∼ , to be used to relate series resistance to motor speed, that is, R ∼se to N ∼ . The operations needed to develop these relations are as follows – two fuzzy Cartesian products and one composition: