What is the correct sequence of proving validity of an argument through truth table method?

1.Assignment of truth-value under columns

2.Deciding the numbers of rows

3.Examining the rows where there are Ts under premises and F under conclusion

4.Calculating truth-value of the premises and the conclusion

A1, 3, 2, 4

B4, 1, 2, 3

C2, 1, 4, 3

D2, 4, 3, 1

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