Answer: Forword chaining is one of the two main methods of reasoning when an
inference engine and can be described logically as repeated application of
modus ponens. Forward chaining is a popular implementation strategy for expert
systems, business and production rule systems.
For example, suppose that the goal is to conclude the
color of a pet named Fritz, given that he croaks and eats flies, and that the
rule base contains the following four rules:
1.
If
X croaks and eats flies – Then X is a frog
2.
If
X chirps and sings – Then X is a canary
3.
If
X is a frog – Then X is green
4.
If
X is a canary – Then X is yellow
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