QUESTION 4 An argument is given as follows: "If it is Saturday today, then we play soccer or basketball", "If the soccer field is occupied, we don't play soccer", "It is Saturday today, and the soccer field is occupied", Therefore, "we play basketball". a) Formulate the argument above into premises using the propositional variables as follows: P: "It is Saturday today" Q: "We play soccer" $\mathrm{R}$ : "We play basketball" S: "The soccer field is occupied" b) Show the steps from the formulated premises in a) to lead to the conclusion. (4 marks) (6 marks)

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