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» A Logic for Algebraic Effects
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AML
2008
57views more  AML 2008»
13 years 8 months ago
Sheaf toposes for realizability
We compare realizability models over partial combinatory algebras by embedding them into sheaf toposes. We then use the machinery of Grothendieck toposes and geometric morphisms t...
Steven Awodey, Andrej Bauer
EUSFLAT
2007
147views Fuzzy Logic» more  EUSFLAT 2007»
13 years 10 months ago
Logical Aggregation Based on Interpolative Realization of Boolean Algebra
In this paper, aggregation is treated as a logical and/or pseudo-logical operation what is important from many points of view such as adequacy and interpretations.
Dragan G. Radojevic
LICS
2002
IEEE
14 years 1 months ago
Tree Extension Algebras: Logics, Automata, and Query Languages
We study relations on trees defined by first-order constraints over a vocabulary that includes the tree extension relation Ì Ì ¼, holding if and only if every branch of Ì ex...
Michael Benedikt, Leonid Libkin
APAL
2008
79views more  APAL 2008»
13 years 8 months ago
Intermediate logics and factors of the Medvedev lattice
We investigate the initial segments of the Medvedev lattice as Brouwer algebras, and study the propositional logics connected to them.
Andrea Sorbi, Sebastiaan Terwijn
ER
2009
Springer
126views Database» more  ER 2009»
14 years 3 months ago
A Frame Manipulation Algebra for ER Logical Stage Modelling
Antonio L. Furtado, Marco A. Casanova, Karin Kooga...