On the same island, you find three friends named Channing, Daija, and Eira.
What type is Channing?
(Btw before you this problem do the other one labled Knights or Knaves. DANT DANT DAAANNT!)
Thanks!
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Channing and Daija cannot both be telling the truth, since Channing says exactly two people are telling the truth while Daija says Eira is also telling the truth.
Thus Eira is a knight.
Were Daija also a knight, there would be no way to assign a truth value to Channing's statement. There would already be two knights, but validating Channing's statement would make a third knight, thus invalidating it. And invalidating it would leave only two knights, thus validating it.
Thus Daija is a knave.
This leaves us with no way to resolve Channing's status. Either knight or knave status for Channing would complete a consistent system.