1 (A ⊃ B) • (C ⊃ D)
2 $\lor$

Multiple Choice

1. (A ⊃ B) • (C ⊃ D)
2. E ⊃ A
3. ∼F $\lor$ E
4. ∼∼F
-Which of the following propositions is derivable from the given premises using the rules available through section 3.2 (MP, MT, DS, HS, Add, Conj, Simp, CD) ?

A) ∼A
B) B
C) ∼B
D) D ⊃ C
E) A ⊃ E