Logic puzzle!
There was a theft case with two suspects, A and B, and four witnesses. The first witness said: I know that A did not steal. The second witness said: I know that B did not steal. The third witness said: At least one of the above two statements is correct. The fourth witness said: The third witness is lying. It was ultimately proven that the fourth witness's testimony was correct. Please explain who the thief is. How can it be proven? Are both A and B the thieves?
Replies (3)
According to the fourth witness being correct, the third person is lying, so both the first and second witnesses are lying. Therefore, A and B are thieves.
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