Question: Discrete math Problem 11: There are three people (Alex, Brook and Cody), one of whom is a knight, one a knave, and one a spy.

Discrete math

Problem 11: There are three people (Alex, Brook and Cody), one of whom is a knight, one a knave, and one a spy. The knight always tells the truth, the knave always lies, and the spy can either lie or tell the truth. They are brought before a judge who wants to identify the spy. Alex says: "I am not a spy." Brook says: "I am a spy." Now Cody is in fact the spy. The judge asks him: "Is Brook really a spy?" Can Cody give an answer so that he doesn't convict himself as a spy? If

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