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3. Transform each informal argument into a formalized wff. Then give a formal proof of the...

3. Transform each informal argument into a formalized wff. Then give a formal proof of the wff. (a) Every student likes cake and likes ice cream. Fred is a student. Therefore, some student likes cake and likes ice cream. (b) Every even number is divisible by 2. There is an even number. Therefore, there is a number which is divisible by 2.

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