Hiroshi Nakano. Fixed-Point Logic with the Approximation Modality and Its Kripke Completeness. In Naoki Kobayashi, Benjamin C. Pierce, editors, Theoretical Aspects of Computer Software, 4th International Symposium, TACS 2001, Sendai, Japan, October 29-31, 2001, Proceedings. Volume 2215 of Lecture Notes in Computer Science, pages 165-182, Springer, 2001. [doi]
Abstract is missing.