common knowledge

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English[edit]

Noun[edit]

common knowledge ‎(uncountable)

  1. That which is known by most people, and thus cannot reasonably be contested.
  2. (logic, game theory) A special kind of knowledge for a group of agents, such that when all the agents in a group G know p, they all know that they know p, they all know that they all know that they know p, and so on ad infinitum.

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