Approximate reasoning Example: The domain of the universe X=Y={1, 2, 3, 4, 5} , there are three fuzzy subsets "large", "small", and "smaller" on X and Y, as follows: "Large" 0.4/3 + 0.7/4 + 1/5 "Small - 1/1 +0.7/2 + 0.3/3 "Smaller" 1/1 + 0.6/2 + 0.4/3 + 0.2/4 Known rule: if x is small, y is large, Then when x= smaller, y=