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Diagramming Practice – Frito Pies

Diagram the following conditional statement and find its contrapositive: “Whenever the cafeteria sells Frito pies, Lanelle chooses not to bring her lunch.”


The diagramming keyword here is “whenever,” which indicates a sufficient condition.  Thus, “cafeteria sells Frito pies” is a sufficient condition.  The other term, “Lanelle chooses not to bring her lunch,” is the necessary condition.

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