### Abstract

CIRC is an automated circular coinductive prover implemented as an extension of Maude. The main engine of CIRC consists of a set of rewriting rules implementing the circularity principle. The power of the prover can be increased by adding new capabilities implemented also by rewriting rules. In this paper we prove the correctness of the coinductive prover and show how rewriting strategies, expressed as regular expressions, can be used for specifying proof tactics for CIRC. We illustrate the strength of the method by defining a proof tactic combining the circular coinduction with a particular form of simplification for proving the equivalence of context-free processes.

Original language | English (US) |
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Pages (from-to) | 69-83 |

Number of pages | 15 |

Journal | Electronic Notes in Theoretical Computer Science |

State | Published - Dec 1 2007 |

Event | 7th International Workshop on Reduction Strategies in Rewriting and Programming, WRS 2007, as part of the 4th Federated Conference on Rewriting, Deduction, and Programming, RDP 2007 - Paris, France Duration: Jun 25 2007 → Jun 25 2007 |

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### ASJC Scopus subject areas

- Theoretical Computer Science
- Computer Science(all)

### Cite this

*Electronic Notes in Theoretical Computer Science*, 69-83.