>we are about to put some effort in advancing a primitive
>fuzzy inference engine we developed in Smalltalk. Before
>doing that and eventually reinventing the wheel, I would
> like to ask if there is something similar available
>(I mean in Smalltalk, PD or commercial).
I developed a fuzzy inference engine in Smalltalk\VisualWorks.
You can get the document which describes this engine via my homepage
"http://www.rz.tu-ilmenau.de/~jahn". Informations about
Smalltalk\VisualWorks can be found at "http://www.parcplace.com".
Olaf Jahn