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Making Inferences Drawing conclusions from two premises: When it rains, the grass gets wet. The grass is wet. Can we assume that it rained? Can we jump to that conclusion just because we know the grass gets wet when it rains? What other way could the grass get wet? Copyright © 2010 by Gamehinge

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When it rains, the grass gets wet. The grass is wet. (Premises) It rained. (Conclusion) The conclusion would be false if the grass got wet from sprinklers. When it rains, the grass gets wet. It rained. (Premises) The grass is wet. (Conclusion) If both premises are true, then that conclusion is true or logical.

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All students are mortal. Socrates is a student. Socrates is mortal. If the two premises are true, that conclusion makes sense or is logical.

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All students are mortal. Socrates is mortal. Socrates is a student. That conclusion would be false if: Socrates is a bird. Birds are mortal.

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All birds have wings. Zero is a bird. Zero has wings. Logical argument All birds have wings. Zero has wings. Zero is a bird. Conclusion would be false if: Zero is an angel or an airplane.

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All basketball players are tall. Gabby is a basketball player. Gabby is tall. Logical argument All basketball players are tall. Sam is tall. Sam is a basketball player. Conclusion would be false if: Sam is a giraffe or a skyscraper.

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All A students are smart. Lucy is an A student. Lucy is smart. Logical argument All A students are smart. Pete is smart. Pete is an A student. Conclusion would be false if: Pete is a dropout.

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