Cyclic proofs for the first-order μ-calculus

Open Access
Authors
Publication date 02-2024
Journal Logic Journal of the IGPL
Volume | Issue number 32 | 1
Pages (from-to) 1–34
Number of pages 34
Organisations
  • Interfacultary Research - Institute for Logic, Language and Computation (ILLC)
Abstract We introduce a path-based cyclic proof system for first-order μ-calculus, the extension of first-order logic by second-order quantifiers for least and greatest fixed points of definable monotone functions. We prove soundness of the system and demonstrate it to be as expressive as the known trace-based cyclic systems of Dam and Sprenger. Furthermore, we establish cut-free completeness of our system for the fragment corresponding to the modal μ-calculus.
Document type Article
Language English
Published at https://doi.org/10.1093/jigpal/jzac053
Downloads
jzac053 (Final published version)
Permalink to this page
Back