Method not stated. Truth table method: (p → q) → r / ~p V q // r V q T T T T T FT T T T T T T T T F F FT T T F T T T F F T T FT F F T T F <-- NOT VALID!!! T F F T F FT F F F F F F T T T T TF T T T T T F T T F F TF T T F T T F T F T T TF T F T T F F T F F F TF T F F F F <-- NOT VALID!!! Edwn