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Show that [(pvvq)vvr] harr [pvv(qvvr)] i...

Show that `[(pvvq)vvr] harr [pvv(qvvr)]` is a tautology

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To show that the expression \([(p \lor q) \lor r] \Leftrightarrow [p \lor (q \lor r)]\) is a tautology, we will construct a truth table. A tautology is a statement that is true in every possible interpretation. ### Step-by-Step Solution: 1. **Identify Variables**: We have three variables: \(p\), \(q\), and \(r\). 2. **Construct the Truth Table**: ...
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