Question 1
Consider J ⊃ L, ~L
.·. ~J. How many rows must the truth table for this argument have?
◦ 2 rows
◦ 4 rows
◦ 8 rows
Question 2
Consider J ⊃ L, ~L
.·. ~J. Is this argument valid or invalid? If the argument is valid, how would this be shown in the truth table for it?
◦ valid; 4
th row
◦ invalid; 1
st and 2
nd rows
◦ valid; the truth table has no rows with all premises T and conclusion F