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Assume that all sparrows are birds and no bird is a mammal. Which conclusion(s) logically follow? I. No sparrow is a mammal.
II. Some mammals are sparrows.

Competition practiceSyllogism
  • AOnly conclusion I follows
  • BOnly conclusion II follows
  • CBoth conclusions follow
  • DNeither conclusion follows

Step-by-Step Solution

Every sparrow is a bird and no bird is a mammal, so no sparrow is a mammal. II contradicts I, so it does not follow.
Answer: A) Only conclusion I follows

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