Kozen, Dexter and Ruozzi, Nicholas - Applications of Metric Coinduction

lmcs:1168 - Logical Methods in Computer Science, September 16, 2009, Volume 5, Issue 3
Applications of Metric Coinduction

Authors: Kozen, Dexter and Ruozzi, Nicholas

Metric coinduction is a form of coinduction that can be used to establish properties of objects constructed as a limit of finite approximations. One can prove a coinduction step showing that some property is preserved by one step of the approximation process, then automatically infer by the coinduction principle that the property holds of the limit object. This can often be used to avoid complicated analytic arguments involving limits and convergence, replacing them with simpler algebraic arguments. This paper examines the application of this principle in a variety of areas, including infinite streams, Markov chains, Markov decision processes, and non-well-founded sets. These results point to the usefulness of coinduction as a general proof technique.


Source : oai:arXiv.org:0908.2793
DOI : 10.2168/LMCS-5(3:10)2009
Volume: Volume 5, Issue 3
Published on: September 16, 2009
Submitted on: December 20, 2007
Keywords: Computer Science - Logic in Computer Science,F.4.1,F.3.1,I.1.3,I.2.3


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