Titlebook: Computer Science Logic; 24th International W Anuj Dawar,Helmut Veith Conference proceedings 2010 Springer-Verlag Berlin Heidelberg 2010 Act

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A Resolution Mechanism for Prenex Gödel Logic can be computed nevertheless. In a further step an efficient translation to a particular structural clause form is introduced. Finally, an adaption of a chaining calculus is shown to provide a basis for efficient, resolution style theorem proving.

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Embedding Deduction Modulo into a Proverese results show that polarized resolution modulo can be integrated into existing provers, where these restrictions and simplifications are present. We also discuss how this integration can actually be done by diverting the main algorithm of state-of-the-art provers.

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Classical and Intuitionistic Subexponential Logics Are Equally Expressive a bijection between synthetic (i.e., focused) partial sequent derivations modulo a given encoding. Particular instances of our encoding for particular subexponential preorders give rise to both known and novel adequacy theorems for substructural logics.

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The Care of Long-Term Prisonersr conjunctive queries with possible inequalities (≠) between variables. In this case, we show that query evaluation is NP-hard and, unless P = NP, these queries do not admit enumeration algorithms with a combined polynomial time delay. However, we also show that hardness relies only on the number ℓ