Superposition is an established decision procedure for various first-order logic theories represented by clause sets. A satisfiable theory, saturated by superposition, implicitly defines a minimal Herbrand model. This raises the question in how far superposition can be employed for reasoning about such models. This is indeed often possible when existential properties are considered. However, proving universal properties directly leads to the introduction of Skolem functions and a modification of the minimal models term-generated domain, changing the examined problem. The author Matthias...