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arXiv · 1001.4427

Extensional and Intensional Strategies

Tony Bourdier·Horatiu Cirstea·Daniel Dougherty·Hélène Kirchner
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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.

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Tony Bourdier, Horatiu Cirstea, Daniel Dougherty, Hélène Kirchner. 2010-01-25. Extensional and Intensional Strategies. https://doi.org/10.4204/eptcs.15.1

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