Authors B. AfshariSebastian EnqvistGraham LeighJohannes MartiY. Venema Date (dd-mm-yyyy) 2025-09 Title Proof Systems for two-Way Modal μ-Calculus Journal Journal of Symbolic Logic Volume 90 Publication Year 2025-09 Pages 1211-1260 Issue number 3 Document type Article URL go to publisher's site Permalink https://hdl.handle.net/11245.1/0bd8627d-5c4f-4735-ae4b-288628f474c1