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GATE CSE 2015 Set 2 | Question: 3

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Consider the following two statements.

  • $S_1$: If a candidate is known to be corrupt, then he will not be elected
  • $S_2$: If a candidate is kind, he will be elected

Which one of the following statements follows from $S_1$ and $S_2$ as per sound inference rules of logic?

  1. If a person is known to be corrupt, he is kind
  2. If a person is not known to be corrupt, he is not kind
  3. If a person is kind, he is not known to be corrupt
  4. If a person is not kind, he is not known to be corrupt
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