[EMAIL PROTECTED] writes: > Consider the following line of reasoning. Let p be the proposition "Ronald > was born in New York." From p, we can infer q: Ronald was born in the United > States. From q, we can infer r: It is possible that Ronald was born in New > Jersey. On the other hand, from p we can infer s: It is not possible that > Ronald was born in New Jersey. We have arrived at a contradiction. What is > wrong? Note: To answer the question, familiarity with modal logic is not > needed.
Are you not overloading the term "New York"; that is, using it to refer both to the city and to the state? Jeffrey A. Smith _______________________________________________ uai mailing list uai@ENGR.ORST.EDU https://secure.engr.oregonstate.edu/mailman/listinfo/uai
