(a) Write the statement symbolically by using parentheses and (b) indicate whether the statement is a negation, conjunction, disjunction, conditional, or biconditional.Let p: The shop is closed. q: It is the weekend. r: It is 9 P.M.The shop is closed if and only if it is the weekend, or it is 9 P.M.
A. (a) (p ? q) ? r; (b) disjunction
B. (a) p ? (q ? r); (b) biconditional
C. (a) p ? (q ? r); (b) conditional
D. (a) (p ? q) ? r; (b) conjunction
Answer: A
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