-*- mode:Text -*-
Copyright 1992 Patrick H. Winston.  All rights reserved.
Version 1.1, transferred from master disk on 21 Jan 93
 
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PURPOSE

Provides program support for Chapter 7, Rules and Rule Chaining.
Illustrates forward chaining via animal identification.

PERFORMANCE EXPERIMENT 1

Examine the file zoofw.exp.  Run the animal identification
experiment by typing the following command to your lisp system:

(load "zoofw.exp")

Alternatively, evaluate each Lisp expression in the file one at a
time, noting what each does.

PERFORMANCE EXPERIMENT 2

Change the result by editing the assertions describing STRETCH in
the zoo.lsp file.  Run Zookeeper again with your altered assertions.

KNOWLEDGE ENGINEERING EXPERIMENT 1

Improve the Zookeeper program by editing the rules in the zoo.lsp
file.

KNOWLEDGE ENGINEERING EXPERIMENT 2

Modify the rules and assertions in the zoo.lsp file so as to make
Zookeeper identify automobile makes, sports personalities, or
something else of your choosing.

LISP PROJECTS

See the file bagger.txt.