Question
Complete the following truth table for the given argument entering T or F in the spaces beneath each simple proposition letter and operator. Mark the main operator column for each statement by checking the boxes in the appropriate columns of the bottom row. Mark all rows in where the premises are all true and the conclusion is false by checking the boxes in the rightmost column. Finally, indicate whether the argument is valid and, if so why it is valid. Based on the completed truth table for the given argument, is the argument valid or invalid? If the argument is valid, select the answer that best characteristic why argument is valid? The given argument is valid because its conclusion is a tautology. The given argument is valid because its two premises are inconsistent. The given argument is invalid.
Explanation / Answer
the second alternative is right answer, the remaining two alternatives are invalid.