Jonathan~
On 10/7/06, Jonathan Lang <[EMAIL PROTECTED]> wrote:

TSa wrote:
> Dispatch depends on a partial ordering of roles.

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Could someone please give me an example to illustrate what is meant by
"partial ordering" here?

Sets demonstrate partial ordering. Let < denote the subset relation ship.
If A < B and B < C, then A < C for any A, B, and C.
However, it is not necessarily the case that A < B, or B < A, or B ==
A for any particular A and B.
Thus transitivity is preserved, but there is not a guarantee of
comparability between elements.
http://en.wikipedia.org/wiki/Partial_ordering
Matt
--
"Computer Science is merely the post-Turing Decline of Formal Systems Theory."
-Stan Kelly-Bootle, The Devil's DP Dictionary