Re: Fuzzy AND and OR

Joan Domingo (
Fri, 1 May 1998 14:16:42 +0200 (MET DST)

In article <004f01bd6ec4$72d44040$0c08c69b@sg>, you say...
> Hi!
> I was wondering if anyone has come across the following in fuzzy
> When using AND as a product (x*y) and OR as a sum (or x+y-x*y), how
> this affect the smoothness of the operators?
> thanks
> Demtiris Memos (
Dear Demitris:
Always, OR operator generates a best smooth behaviour than AND operator;
the AND operator is more abrupt and less smooth. It's easy to create a
very simple application in, for instance, Mablab fuzzy toolbox with fuzzy
editor, and introducing only a few rules. If you see the output surface,
verification is complete!

Joan Domingo