This paper studies the relative efficiency of ordered binary decision diagrams (OBDDs) and the Davis-Putnam-Logemann-Loveland procedure (DPLL), two of the main approaches to solving Boolean satisfiability instances. Especially, we show that OBDDs, even when constructed using only the rather weak axiom and join rules, can be exponentially more efficient than DPLL or, equivalently, tree-like reso...

In the literature of new trade theory, most studies have dealt with industrial location by imposing an assumption of free transportation in the agricultural sector. We explicitly incorporate arbitrary transport costs in both the manufacturing and agricultural sectors into the Helpman-Krugman-Davis model of two countries and one production factor. The following results are obtained. First, we fi...

Under 5 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3,766 6.0 5 to 9 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3,870 6.2 10 to 14 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3,841 6.2 15 to 19 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,031 8.1 20 to 24 years . . . . . . . . . . . . . . . . ....

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The conclusion of this argument (hereafter ZA) entails the falsity of physicalism because, technical details aside, physicalism is or entails the thesis that every psychological truth is entailed by some physical truth. If it is possible that I have a zombie duplicate however, then it is possible that the physical truths are as they are and some psychological truth is different. Hence 3 entails...