We consider Pure Type Systems (PTSs) extended with a mechanism for parametric terms. In this paper we introduce a PTS called λP— utilizing this extension. λP— exactly corresponds to first-order predicate logic, un...
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We consider Pure Type Systems (PTSs) extended with a mechanism for parametric terms. In this paper we introduce a PTS called λP— utilizing this extension. λP— exactly corresponds to first-order predicate logic, unlike the usual embedding of this logic in PTSs. Next, we show how tableaux-based proofs can, in a structured way, be converted into λ-terms representing proofs in λP— . The result is an interactive theorem prover combined with powerful tableaux-based automatic proof construction.
The paper presents an approach to standardized data exchange between heterogeneous resources based on a unified hierarchical model of the data representation. The paper gives a metamodel and description of the structu...
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The paper presents an approach to standardized data exchange between heterogeneous resources based on a unified hierarchical model of the data representation. The paper gives a metamodel and description of the structural elements of the unified model. Some conversion algorithms were developed to turn the information storage schemes into the unified hierarchical model in the case of XML-format.
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