Extensional and Intensional Strategies
Identifieur interne : 002169 ( Hal/Corpus ); précédent : 002168; suivant : 002170Extensional and Intensional Strategies
Auteurs : Tony Bourdier ; Horatiu Cirstea ; Daniel Dougherty ; Hélène KirchnerSource :
- Electronic Proceedings in Theoretical Computer Science [ 2075-2180 ] ; 2010.
Abstract
This paper is a contribution to the theoretical foundations of strategies. We first present a general definition of abstract strategies which is extensional in the sense that a strategy is defined explicitly as a set of derivations of an abstract reduction system. We then move to a more intensional definition supporting the abstract view but more operational in the sense that it describes a means for determining such a set. We characterize the class of extensional strategies that can be defined intensionally. We also give some hints towards a logical characterization of intensional strategies and propose a few challenging perspectives.
Url:
DOI: 10.4204/EPTCS.15.1
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Hal:inria-00494636Le document en format XML
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<front><div type="abstract" xml:lang="en">This paper is a contribution to the theoretical foundations of strategies. We first present a general definition of abstract strategies which is extensional in the sense that a strategy is defined explicitly as a set of derivations of an abstract reduction system. We then move to a more intensional definition supporting the abstract view but more operational in the sense that it describes a means for determining such a set. We characterize the class of extensional strategies that can be defined intensionally. We also give some hints towards a logical characterization of intensional strategies and propose a few challenging perspectives.</div>
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