From: earlcox@earlcoxreports.com   
      
   Bill, my old friend, why do you even waste your time replying to nonsense   
   like this?   
      
   Earl   
      
      
   "William Siler"  wrote in message   
   news:49b9df3d.0402180939.5adafe0e@posting.google.com...   
   > mencar@di.uniba.it (Corrado Mencar) wrote in message   
   news:...   
   >   
   > > maxdemianhesse@hotmail.com (wichito) wrote in message   
   news:<6635451.0402160500.2b605cb0@posting.google.com>...   
   >   
   > > This is due to the peculiar definition of a rule in fuzzy controllers.   
   > > Indeed, in such context, the rule "IF (e=Ai) AND (de=Bi) THEN (du=Ci)"   
   > > actually corresponds to "(e=Ai) AND (de=Bi) AND (du=Ci)" ...   
   >   
   > In my view, "IF (e=Ai) AND (de=Bi) THEN (du=Ci)" is a rule, and   
   > "(e=Ai) AND (de=Bi) AND (du=Ci)" is a compound proposition. I do not   
   > understand how the proposition "(e=Ai) AND (de=Bi) AND (du=Ci)"   
   > corresponds to the rule "IF (e=Ai) AND (de=Bi) THEN (du=Ci)". To me,   
   > the simplest form a rule can take is "if A then B". Do you mean that   
   > your formulation asserts that "(e=Ai) AND (de=Bi) AND (du=Ci)" is   
   > true? In this case, if initial values for Ai, Bi and Ci result in this   
   > proposition being false or only partially true, how do you know what   
   > to modify to make the proposition true? How do you evaluate "(e=Ai)   
   > AND (de=Bi) AND (du=Ci)" given initial existing values for "e", "de"   
   > and "du"?   
   >   
   > > Of course this is true if you interpret (as in most cases) "THEN" as   
   > > "AND", otherwise things are different.   
   >   
   > In nearly 20 years of working with rule-based fuzzy expert systems, I   
   > have never seen "THEN" interpreted as "AND". How is this done? Is   
   > there a reference to this in any of the standard fuzzy books? Do you   
   > mean evaluating "if A then C" by using the fuzzy AND rather than the   
   > implication operator, as Mamdani did?   
   >   
   > Regards,   
   >   
   > William Siler   
      
   --- SoupGate-Win32 v1.05   
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