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Information and meta information. (English) Zbl 0702.90110
Theoretical aspects of reasoning about knowledge, Proc. 2nd Conf., Pacific Grove/CA (USA) 1988, 227-243 (1988).
Summary: [For the entire collection see Zbl 0699.00012.]
A model of information is presented, in which statements such as “the information sets are common knowledge” may be formally stated and proved. The model can also be extended to include the statement: “this model is common knowledge” in a well-defined manner, using the fact that when an event A is common knowledge, it is common knowledge that A is common knowledge. Finally, the model may also be used to define a “natural” topology on information.

91A99 Game theory
94A15 Information theory (general)