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All mammals have hearts. Some whales are mammals. Therefore, some whales have he

Practice Questions

Q1
All mammals have hearts. Some whales are mammals. Therefore, some whales have hearts. Is this conclusion valid?
  1. Yes
  2. No
  3. Only if all mammals are whales
  4. Only if some whales are not mammals

Questions & Step-by-Step Solutions

All mammals have hearts. Some whales are mammals. Therefore, some whales have hearts. Is this conclusion valid?
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