Silly Contrapositives
Pro Problems > Math > Logic > Conditional Statements > ContrapositivesSilly Contrapositives
Write the contrapositives of each of the following statements:
- People who sell air conditioners to eskimos are both devious and clever.
- Whenever it rains at night, I don't like to drive.
- If the elections are rigged, the results will be skewed.
- If Stella likes to draw, or Toby likes to paint, then both their mother and father are happy.
- If jackals eat lettuce, and rabbits eat elephants, then either Bob is old or Jane is young.
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Problem by Mr. Twitchell
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Josiah, Martha and Kylie
Consider the following conditional statements:
If Josiah makes a funny face, and Martha sees it, Martha will laugh.
Martha laughs if and only if she is amused.
If Martha is amused, she pokes Kylie.
If Martha did not poke Kylie, state all the things we can logically conclude.
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