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Khan Academy: The Logic of "If" vs. "Only If"

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How are "If" and "Only if" different? Consider the following two statements: I wear a hat if it's sunny. I wear a hat only if it's sunny. These two statements sound so similar, but their meanings are different. The test will challenge you on your understanding of this distinction.

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  • Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)