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common knowledge


from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. What "everybody knows", often with reference to a specific community; something which cannot reasonably be contested.
  • n. 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.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. anything generally known to everyone


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