Final answer:
The truth table for Statement 2B has four lines.
Step-by-step explanation:
The truth table for Statement 2B has four lines.
To construct the truth table, we need to consider all possible combinations of truth values for the variables N, S, and J. Since there are three variables, there will be 2^3 = 8 different combinations. However, some of these combinations may result in the same truth values for the statement. We can simplify the statement to [N ≡ (S • J)] ⊃ [S ⊃ (N ⊃ J)]
By evaluating the statement for each combination of truth values, we find that there are four different resulting truth values: true, true, true, and true. Therefore, the truth table for Statement 2B has four lines.