This is a preview. Log in through your library . Abstract Deductive inference is usually regarded as being "tautological" or "analytical": the information conveyed by the conclusion is contained in ...

This is a preview. Log in through your library . Abstract This paper gives a characterization of those quasi-normal extensions of the modal system S4 into which intuitionistic propositional logic Int ...

when thinking about logical agents, we imagine that the agent has a knowledge base (KB for short) that contains logical sentences that describe the state of the world you could think of a KB as a ...