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» On Automating the Calculus of Relations
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TACS
1991
Springer
15 years 10 months ago
An Extension of System F with Subtyping
System F is a well-known typed λ-calculus with polymorphic types, which provides a basis for polymorphic programming languages. We study an extension of F, called F<: (pronoun...
Luca Cardelli, Simone Martini, John C. Mitchell, A...
VLDB
1991
ACM
111views Database» more  VLDB 1991»
15 years 10 months ago
The Power of Methods With Parallel Semantics
A model capturing the data manipulation capabilities of a large class of methods in ohjectoriented databases is proposed and investsigated. The model uses a deterministic, paralle...
Karl Denninghoff, Victor Vianu
ICFP
2010
ACM
15 years 7 months ago
Parametricity and dependent types
' abstraction theorem shows how a typing judgement in System F can be translated into a relational statement (in second order predicate logic) about inhabitants of the type. ...
Jean-Philippe Bernardy, Patrik Jansson, Ross Pater...
CORR
2008
Springer
121views Education» more  CORR 2008»
15 years 6 months ago
Separability in the Ambient Logic
Abstract. The Ambient Logic (AL) has been proposed for expressing properties of process mobility in the calculus of Mobile Ambients (MA), and as a basis for query languages on semi...
Daniel Hirschkoff, Étienne Lozes, Davide Sa...
KI
2002
Springer
15 years 6 months ago
Qualitative Velocity and Ball Interception
In many approaches for qualitative spatial reasoning, navigation of an agent in a more or less static environment is considered (e.g. in the double-cross calculus [12]). However, i...
Frieder Stolzenburg, Oliver Obst, Jan Murray