Question: Show that the expressions are statement forms according to the definition. Assume that p, q, and r are simple statements. 1. ( (p (r)

Show that the expressions are statement forms according to the definition. Assume that p, q, and r are simple statements.
1. ( (p ˄ (r) ˅ q
2. (p ( (q) ˄ r
3. ((p ˅ r) ( (q ˄ r)
4. ([(p ˄ r) ( q]

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