Re: prob. vs. poss., again...

Stephen Paul King (
Mon, 18 May 1998 04:58:02 +0200 (MET DST)


Have you looked at Kosko's subsethood formalism? He discusses
how to derive the Baynes theorem from the degree of Subsethood in his
text: Neural Networks and Fyzzy Systems.

Kind Regards,

Stephen (Ulf Nordlund) wrote:

>Hi all,
>I have a problem explaining the difference, _in_practice_, between
>probability and possibility. I think I understand it pretty well myself,
>but I want some advice on how to best explain it to others.
>I don't mean general examples. There are some good ones of those around
>(e.g. the two bottles offered to a very thirsty man, or the half-eaten
>apple..). It's more the problem of explaining the difference between
>probability and possibility when the fuzzy sets (i.e. their membership
>functions) are based on statistical data such as census counts. (One has
>to admit that the boundary between probability and possibility in this
>case becomes a bit "fuzzy"...)
> Ulf Nordlund, Inst. of Earth Sciences
> Uppsala University, Sweden
> <>