A Cyclic Proof System for Guarded Kleene Algebra with Tests
Jan Rooduijn,
Dexter Kozen,
Alexandra Silva
Abstract:Guarded Kleene Algebra with Tests ($$\texttt{GKAT}$$
GKAT
for short) is an efficient fragment of Kleene Algebra with Tests, suitable for reasoning about simple imperative while-programs. Following earlier work by Das and Pous on Kleene Algebra, we study $$\texttt{GKAT}$$
GKAT
from a proof-theoretical perspective. The deterministic nature of $$\texttt{GKAT}$$
GKAT
allows for a non-well-founded se… Show more
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