Final answer:
Disjunctive syllogisms with reversed major and minor terms can still be valid in deductive reasoning.
Step-by-step explanation:
Deductive reasoning can use a number of valid argument structures, one of which is called a disjunctive syllogism. In this form, the major and minor terms are reversed in the conclusion. However, despite the reversal, such syllogisms can still be valid. The validity of a deductive inference depends on the logical form of the argument and whether the conclusion follows necessarily from the premises. In the case of a disjunctive syllogism, if the premises are true, then the conclusion must be true as well.