Statements : All text books are books intended for careful study. Some reference books are books intended for careful study Conclusion : I. Some reference books are text books. II. Both text books and reference books are intended for careful study.
Statements : Some spaniels are not good hunters. All spaniels are gentle dogs. Conclusions : I. Therefore no gentle dogs are good hunters. II. Therefore good hunter dogs are not gentle.
Statements : All oppositions of basis economic and political changes are outspoken critics of the leaders of Congress. All right-wing extremities are opponent of basis economic and political changes. Conclusions : I. It follow that all outspoken critics of liberal leaders of Congress are right-wing extremities. II. All right-wing extremities are opponents of basis economic and political changes.
Statements : Some drivers are technicians. All technicians are engineers. Some engineers are lecturers. Conclusions : I. Some technicians are lecturers. II. Some lecturers are drivers. III. All engineers are technicians. IV. Some engineers are drivers.
Statements : Some barbers are fashion designers. No fashion designers are businessman. Some businessman are traders. Conclusions : I. No fashion designer are traders. II. Some traders are not fashion designers. III. Some fashion designers are traders. IV. Some barbers are not businessman.
