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Chapter and Conference Paper
Declarative Diagnosis of Temporal Concurrent Constraint Programs
We present a framework for the declarative diagnosis of non-deterministic timed concurrent constraint programs. We present a denotational semantics based on a (continuous) immediate consequence operator, ...
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Article
Weak relative pseudo-complements of closure operators
We define the notion of weak relative pseudo-complement on meet semi-lattices, and we show that it is strictly weaker than relative pseudo-complementation, but stronger than pseudo-complementation. Our main re...
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Chapter and Conference Paper
Proving correctness of Constraint Logic Programs with dynamic scheduling
A general framework based on Hoare logic is introduced for specifying and reasoning about Constraint Logic Programs with dynamic scheduling. The framework consists of a mixed formalism of programs in a ccp-lik...
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Chapter and Conference Paper
On blocks: locality and asynchronous communication
A general construct for locality in languages based on asynchronous communication is introduced which allows a uniform semantic description of such apparently diverse notions as the introduction of local varia...
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Chapter and Conference Paper
The failure of failures in a paradigm for asynchronous communication
We develop a general framework for a variety of concurrent languages all based on asynchronous communication, like data flow, concurrent logic, concurrent constraint languages and CSP with asynchronous channel...
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Chapter and Conference Paper
From Failure to Success: Comparing a Denotational and a Declarative Semantics for Horn Clause Logic
The main purpose of the paper is to relate different models for Horn Clause Logic: operational, denotational, declarative. We study their relationship by contrasting models based on interleaving, on the one ha...
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Chapter and Conference Paper
A two-level approach to logic plus functional programming integration