All heroes are winners; all winners are lucky. Inferences: I all lucky people are heroes; II some lucky people are heroes; III some winners are heroes. Which follow?
Under the exam’s implicit assumption that heroes exist, heroes supply examples of lucky people and winners, proving II and III. Inclusion cannot be reversed to claim all lucky people are heroes. **B**. Without an existence assumption, the universal premises alone do not imply either existential conclusion.
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