7. Determine if the following expressions are tautologies, contradictions, or contingencies by using truth tables. Show all your work. a. $(p \land q) \to (p \lor q)$ b. $(q \leftrightarrow ((p \lor r) \land q))$
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(p A q)->(p V q) To determine if this expression is a tautology, contradiction, or contingency, we need to create a truth table for all possible combinations of truth values for p and q. p | q | (p A q) | (p V q) | (p A q)->(p V Show more…
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