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» Logical relations for monadic types
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ADC
2008
Springer
146views Database» more  ADC 2008»
14 years 1 months ago
A Typed Higher-Order Calculus for Querying XML Databases
As the eXtensible Markup Language (XML) is about to emerge as a new standard for databases, the problem of providing solid logical grounds for XML query languages arises. For the ...
Qing Wang, Klaus-Dieter Schewe
ENTCS
2007
113views more  ENTCS 2007»
13 years 7 months ago
A Formalization of Strong Normalization for Simply-Typed Lambda-Calculus and System F
We formalize in the logical framework ATS/LF a proof based on Tait’s method that establishes the simply-typed lambda-calculus being strongly normalizing. In malization, we emplo...
Kevin Donnelly, Hongwei Xi
LICS
2005
IEEE
14 years 1 months ago
Temporal Logics over Unranked Trees
We consider unranked trees, that have become an active subject of study recently due to XML applications, and characterize commonly used fragments of firstorder (FO) and monadic ...
Pablo Barceló, Leonid Libkin
CORR
2006
Springer
144views Education» more  CORR 2006»
13 years 7 months ago
On the logical definability of certain graph and poset languages
We show that it is equivalent, for certain sets of finite graphs, to be definable in CMS (counting monadic second-order, a natural extension of monoadic second-order logic), and t...
Pascal Weil
CORR
2010
Springer
180views Education» more  CORR 2010»
13 years 7 months ago
A Meta-Programming Approach to Realizing Dependently Typed Logic Programming
Dependently typed lambda calculi such as the Logical Framework (LF) can encode relationships between terms in types and can naturally capture correspondences between formulas and ...
Zachary Snow, David Baelde, Gopalan Nadathur