common knowledge

English

Noun

common knowledge (uncountable)

1. What "everybody knows", often with reference to a specific community; something which 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.

Related terms

• common sense

See also

• Common knowledge on Wikipedia.Wikipedia