Question: Answer the following questions. Explain your reasoning: a) using the truth table , show that the following statement is a tautology: q ((pq) (r p))

Answer the following questions. Explain your reasoning:

a) using the truth table, show that the following statement is a tautology:

q ((pq)(r p))

b) Without using the truth table, show that the following statement is true:

(qp)rp (qr)

c) Negate the following statement:

x:P(x)[x:(Q(x)R(x)]

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