[plt-planet-announce] Updated PLaneT package: williams/inference.plt for 4.x

This announces the availability of an updated package from PLaneT:

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Name:            inference.plt
Package version: 2.6
Owner:           williams


Package Description
Implements a rule-based inference engine that supports both forward (data-driven) and backward (goal-driven) chaining.
Release Notes
Added simple truth maintenance using assertion hooks. This allows a class to specify actions when facts in that class are asserted or retracted.
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Go to 

http://planet.plt-scheme.org/display.ss?package=inference.plt&owner=williams

for more information.