Yang, Kun; Chen, Jianzhong; Sun, Degang; Liu, Dayou The logical omniscience problem in epistemic logics and methods to resolve it. (Chinese. English summary) Zbl 0988.03511 Acta Sci. Nat. Univ. Jilinensis 1999, No. 3, 40-43 (1999). MSC: 03B42 Logics of knowledge and belief (including belief change) PDFBibTeX XMLCite \textit{K. Yang} et al., Acta Sci. Nat. Univ. Jilinensis 1999, No. 3, 40--43 (1999; Zbl 0988.03511)