How to create fuzzy subsystem in simulink?

How to make fuzzy subsystem in simulink? I Have two input and the output of it is output 1. I wanna make output 1 as a subsystem 1, How the procedure if I wanna join subsystem 1 with input 3?

Answer 1

[Guy Rouleau]

This should give you a good overview of the concept:

http://www.mathworks.com/videos/fuzzy-logic-controller-in-simulink-68767.html