Tuesday, April 7, 2009

Another problem in FOL
In FOL there seems to be a separation between the constants and atomic terms of the logic and the actual statements made over variables. So natural question comes to mind is that while constructing a statements like FORALL(x) Happy(x)=> Playing(x) and then start putting in the constants and terms in our Knowledge base or model how do we validate the model that we build? When we did it in propositional logic we essentially made sure by using certain refutation and resolution methods that the knowledge base was consistent. Since we saw in the lecture how there is exponential blow up if we do inference the same would go for model checking too.... Another big problem...?

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