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1. (1 pt each up to 5 pts) Decide whether each of the following sentences is valid, unsatisfiable, or neither. Verify your decisions using truth

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1. (1 pt each up to 5 pts) Decide whether each of the following sentences is valid, unsatisfiable, or neither. Verify your decisions using truth tables or the equivalence rules of Figure 7.11 (page 249) a. Smoke Smoke b. Smoke Fire c. (Smoke Fire)SmokeFire) d. Smoke v Fire v -Fire Fire)) f. (Smoke Fire) ((Smoke A Heat) g. Big v Dumb v (Big Dumb ) Fire)

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