Directions: Prove the following deductions to be valid. Show all the steps.

E.

1. (F G) v H

2. ~ H / F

F.

1. (S T) (U V)

2. S v U /T v V

G.

1. ~ (M v N)

2. P M

3. O v P /O

H.

1. (A B) v (A C) /A