Three individuals, , and , are suspected of income tax evasion. They testify under oath as follows : : is guilty and is innocent. : If is guilty, then so is . : I’m innocent but at least one of the others is guilty.
Which of the following is true?
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Three individuals, A, B and C, are suspected of income tax evasion. They testify under oath as follows: A: B is guilty and C is innocent. B: If A is guilty, then so is C. C: I’m innocent but at least one of the others is guilty. Which of the following is true? (A) Testimony of A follows from testimony of B (B) Testimony of B follows from testimony of A (C) Testimony of C follows from testimony of A (D) Testimony of A follows from testimony of C
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This question is on Propositional logic and conditionals, part of Logic and proof techniques in Mathematics.
Statements, truth values and how if-then statements are negated, reversed and chained.
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Question from the JNU SSS 2014 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.