### all?

#### all? agentset [reporter]

Reports true if all of the agents in the agentset report true for the given reporter. Otherwise reports false as soon as a counterexample is found.

If the agentset is empty, reports true.

The reporter must report a boolean value for every agent (either true or false), otherwise an error occurs.

    if all? turtles [color = red]
      [ show "every turtle is red!" ]

See also any?.

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