INSTRUCTIONS: Use an ordinary truth table to answer the following problems. Construct the truth table as per the instructions in the textbook. Given the argument: H ? G / G ? H / H ? G // G • H This argument is:
A) Invalid; fails in 1st line.
B) Invalid; fails in 6th line.
C) Invalid; fails in 3rd line.
D) Valid.
E) Invalid; fails in 4th line.
D
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