Once you have learned to recognize a variety of valid and invalid forms of conditional argument, you can evaluate many unfamiliar forms of argument by recasting them as equivalent conditional arguments.
Any disjunction is equivalent to a conditional, and so is any negated conjunction.
Neither operation by itself gives an equivalent conditional. If P then Q 2. Disjunctions equivalent to conditionals. You can construct a conditional equivalent to a disjunction. Take either disjunct as the consequent, and the negation of the other disjunct as the antecedent.