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Exercise 2. Decide if the following formulas are WFFs (strictly follow the definition of a WFF in the lectures). For those that are WFFs, draw

Exercise 2. Decide if the following formulas are WFFs (strictly follow the definition of a WFF in the lectures). For those that are WFFs, draw their syntax tree. (10 marks) pr - (pq)(r(pq)) - ((pq)(r(st))) - p(q(pr)) - (pq)(pr) - ((pp)q)

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