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Flag-based big-step semantics

Casper Bach Poulsen, Peter Mosses Orcid Logo

Journal of Logical and Algebraic Methods in Programming, Volume: 88, Pages: 174 - 190

Swansea University Author: Peter Mosses Orcid Logo

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DOI (Published version): 10.1016/j.jlamp.2016.05.001

Abstract

Structural operational semantic specifications come in different styles: small-step and big-step. A problem with the big-step style is that specifying divergence and abrupt termination gives rise to annoying duplication. We present a novel approach to representing divergence and abrupt termination i...

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Published in: Journal of Logical and Algebraic Methods in Programming
ISSN: 23522208
Published: 2017
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa28828
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Abstract: Structural operational semantic specifications come in different styles: small-step and big-step. A problem with the big-step style is that specifying divergence and abrupt termination gives rise to annoying duplication. We present a novel approach to representing divergence and abrupt termination in big-step semantics using status flags. This avoids the duplication problem, and uses fewer rules and premises for representing divergence than previous approaches in the literature.
Keywords: Structural operational semantics, SOS, coinduction, big-step semantics, natural semantics, small-step semantics
College: Faculty of Science and Engineering
Start Page: 174
End Page: 190

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