1. M⊃(R • E) Premise 2. (E∨H)⊃G Premise // Prove M⊃G 3. M ⊃ E 1, Simplification (SIMP) 4. M ⊃(E v H) 3, Addition (ADD) 5. M ⊃ G 4,2 Hypothetical Syllogism (HS)