Common knowledge can be defined in at least two ways: syntactically as the common knowledge of a set of formulas or … semantically, as the meet of the knowledge partitions of the agents. In the multi-agent S5 logic with either finitely or countably … held in common knowledge, there is either only one member or uncountably many members of the meet partition with this …

One approach to representing knowledge or belief of agents, used by economists and computer scientists, involves an …

The work of knowledge organization requires a particular set of tools. For instance we need standards of content …, and Describing Archives: A Content Standard. When we intellectualize the process of knowledge organization – that is when … we do basic theoretical research in knowledge organization we need another set of tools. For this latter exercise we need …

allow for non-trivial unawareness among several individuals and strong properties of knowledge. We show that a canonical …