Fuzzy Logic
Abstract
Medical knowledge as well as clinical practice are characterized by inescapable
uncertainty. There are many reasons this is the case, but foremost among them
is that almost everything in medicine is inevitably vague, be it something
linguistic such as the term “illness”, or something extra-linguistic such as
the condition referred to as illness. If we ask ourselves, then, what the term
“illness” means exactly, on the one hand; and how we may precisely delimit
the condition illness, on the other; we shall realize that to answer these and
similar questions requires specific methods that enable us to adequately cope
with vagueness. As we shall see below, fuzzy logic provides us with just such
methods