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Madeline must have known the material for the test, because if a person knows the material, that person will always get an A, and Madeline was one of the students that got an A.

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Madeline must have known the material for the test, because if a person knows the material, that person will always get an A, and Madeline was one of the students that got an A.

This is invalid. The ...

Solution Summary

Valid or invalid scenarios are assessed.

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