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Exercise 1. 1. Express each formula using only (at most) the connectives listed. In each case use a truth table to prove the equivalence. (Note: ? is exclusive `or`)Formula: p?q. Connectives: {?,?}.Formula: p?q. Connectives: {?,?,?}. Formula: p?q. Connectives: {?, ?}.Formula: (p?q) ? ((?p)?q
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