Question 1
Consider “A v E, (M ⊃ A) ∙ (M ⊃ E)
.·. M ≡ (A ∙ E)”. How many rows must the truth table for determining the validity of this formula have?
◦ 2 rows
◦ 4 rows
◦ 8 rows
Question 2
Consider “A v E, (M ⊃ A) ∙ (M ⊃ E)
.·. M ≡ (A ∙ E)”. Is the argument valid or invalid? In the truth table for determining this, which specific rows, if any, are relevant?
◦ invalid; 2
nd row
◦ invalid; 1
st and 3
rd rows
◦ valid; it has no rows showing invalidity