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Statements: Some doctors are engineers. Some engineers are lawyers. Conclusions: I. Some doctors are lawyers.
II. No doctor is a lawyer. Which conclusion(s) follow?

Competition practiceSyllogism
  • AOnly conclusion II follows
  • BNeither conclusion follows
  • CEither I or II follows
  • DOnly conclusion I follows

Step-by-Step Solution

Neither conclusion is definitely established. But I and II form a complementary pair on the same terms (some are / none are), so exactly one must be true: either I or II follows.
Answer: C) Either I or II follows

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