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Question: question 1 discuss the limitations of expert systems in modeling...

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Question 1

Discuss the limitations of expert systems in modeling human performance.

Question 2

Determine if there is equivalence or not between (¬P → ¬Q) and (P ∨ ¬Q). Use truth tables to explain your answer.

Question 3

Consider the following pair of expressions:

lives_in(X, athabasca_town, works_in(X, athabasca_university))

lives_in(karen, Y, works_in(X, Z))

Try to unify this pair of expressions; then either show the most general unifier or explain why they will not unify.

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