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Solution to part (a)

Give one interpretation that is a model of KB.

D = {x,y} (this is true of all the interpretations.)

phi(a) = x, phi(b)=x, phi(c)=x.

pi(p)(<x>)=TRUE. pi(p)(<y>)=TRUE.

pi(q)(<x>)=TRUE. pi(q)(<y>)=TRUE.

Computational Intelligence online material, ©David Poole, Alan Mackworth and Randy Goebel, 1998

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