| Section | Problem | Notes
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|---|
| 1.3 | 10d | For this and similar problems:List the variable columns and rows in the same order as the examples in the textbook.Show intermediate columns as necessary. A truth table is not a proof. Clearly state why the truth table proves what is asked.
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| 14 |
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| 16 | Read the paragraph before the problem.
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| 30 | Begin by realizing that it can only be false if the premise is true but the conclusion is false. Then argue that if the conclusion is false, the premise is too.
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| 1.4 | 14 | Justify your answers by providing an example, counter example, and/or brief explanation.
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| 36 |
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| 50 | Define a universe of discourse and choose statements P and Q on that universe such that the given statements have different truth values. Notice that 49 is similar. |