A Complete Inference System for Skip-free Guarded Kleene Algebra with Tests

January 26, 2023 ยท The Ethereal ยท ๐Ÿ› European Symposium on Programming

๐Ÿ”ฎ THE ETHEREAL: The Ethereal
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Authors Tobias Kappรฉ, Todd Schmid, Alexandra Silva arXiv ID 2301.11301 Category cs.LO: Logic in CS Cross-listed cs.PL Citations 8 Venue European Symposium on Programming Last Checked 5 months ago
Abstract
Guarded Kleene Algebra with Tests (GKAT) is a fragment of Kleene Algebra with Tests (KAT) that was recently introduced to reason efficiently about imperative programs. In contrast to KAT, GKAT does not have an algebraic axiomatization, but relies on an analogue of Salomaa's axiomatization of Kleene Algebra. In this paper, we present an algebraic axiomatization and prove two completeness results for a large fragment of GKAT consisting of skip-free programs.
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