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(20 points) Using a truth table, prove that each of the following is a tautology, a contradiction or neither. Also Say which applies a. AAB

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(20 points) Using a truth table, prove that each of the following is a tautology, a contradiction or neither. Also Say which applies a. AAB AV B' b. (A + B) v (A' + B) C. (A + B)' V AAB d. AB (A + B)' where A B is exclusive or and is true when A # B and false when A = B

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