Coinductive Big-Step Semantics for Concurrency


In a paper presented at SOS 2010 [13], we developed a framework for big-step semantics for interactive input-output in combination with divergence, based on coinductive and mixed inductivecoinductive notions of resumptions, evaluation and termination-sensitive weak bisimilarity. In contrast to standard inductively defined big-step semantics, this framework handles divergence properly; in particular, runs that produce some observable effects and then diverge, are not “lost”. Here we scale this approach for shared-variable concurrency on a simple example language. We develop the metatheory of our semantics in a constructive logic.

DOI: 10.4204/EPTCS.137.6

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@inproceedings{Uustalu2013CoinductiveBS, title={Coinductive Big-Step Semantics for Concurrency}, author={Tarmo Uustalu}, booktitle={PLACES}, year={2013} }