Activity 1.1.2: Truth Tables and Deduction You used the pool in the afternoon. q= You cleaned up after lunch….

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Activity 1.1.2: Truth Tables and Deduction

“You used the pool in the afternoon.”

q= “You cleaned up after lunch.”

r =

“You must clean up after dinner.”

1. Use connectives to translate the following statement into formal logic.

o If you used the pool in the afternoon and you didn’t clean up after lunch, then you must clean up after dinner.

2. Construct a truth table for the formal logic statement that you found in part (1). The eight rows of your table should correspond to the eight different

possibilities for p, q, and r. (See the last activity for an example.)

3. Suppose that the statement given in part (1) is false. What must be true about your pool usage and cleanup duties? Explain how to justify your answer

using the truth table.

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