Few simple fuzzy logic examples

Hi

I need a developer who knows fuzzy logic well to show me a few examples of what it may look like in MQL4.

I basically just want to use fuzzy logic to define signals in my code. 

Ref: 

http://au.mathworks.com/help/fuzzy/what-is-fuzzy-logic.html
http://whatis.techtarget.com/definition/fuzzy-logic 
http://en.wikipedia.org/wiki/Fuzzy_logic

etc.