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There are two people A and B, one is knight & another is knave. A says - At least one of us is a knave. What are A & B?

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There are two people, A and B, each of whom is either a knight or a knave.
A says, "At least one of us is a knave."
What are A and B?

Details and Assumptions:
A knight always tells the truth.
A knave always lies.

posted Jan 16, 2017 by anonymous

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