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Kenneth Rosen Edition 7 Exercise 1.6 Question 26 (Page No. 80)

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Justify the rule of universal transitivity, which states that if $\forall x (P(x) \rightarrow Q(x))$ and $\forall x(Q(x) \rightarrow R(x))$ are true, then $\forall x (P(x) \rightarrow R(x))$ is true, where the domains of all quantifiers are the same.
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Kenneth Rosen Edition 7 Exercise 1.6 Question 32 (Page No. 80)
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