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Exercise 22

Avg difficulty 2.5

Identify which pairs of statements are logically equivalent.

  1. If you are not wearing shorts, then it is not hot outside.

  2. If you are wearing shorts, then it is hot outside.

  3. If it is not hot ouside, then you are not wearing shorts.

  4. If it is hot outside, then you will wear shorts.

Lee et al., Math in Society, §1.1 Logic in Everyday Life, Exercise 22

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Adapted from Math in Society © 2018–2024 Portland Community College Math Instructors. Licensed under CC BY-SA 4.0. Source: Math in Society. Imported at revision 68ee43c.